PDF ebook format
Protection of PDF files rather than properietary ebook formats.
20';display:block;height:0;clear:both;visibility:hidden}.clearfix:before,.clearfix:after,.flex_column:before,.flex_column:after,.widget:before,.widget:after{content:'20';display:block;overflow:hidden;visibility:hidden;width:0;height:0}.flex_column:after,.clearfix:after{clear:both}.clearfix{zoom:1}body div .first{margin-left:0}div .flex_column{z-index:1;float:left;position:relative;min-height:1px;width:100%}div .av_one_third{margin-left:6%;width:29.333333333333332%}div .av_two_third{margin-left:6%;width:64.66666666666666%}html,body,div,span,h1,h2,h3,p,a,address,img,strong,b,ul,li,header,nav,section{margin:0;padding:0;border:0;font-family:inherit;font-size:inherit;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;vertical-align:baseline}header,nav,section{display:block}body{line-height:1em}ul{list-style:none}*{box-sizing:border-box}html.responsive,.responsive body{overflow-x:hidden}body{font-style:normal;font-variant:normal;font-weight:400;font-size:13px;line-height:1.65em;font-family:HelveticaNeue,'Helvetica Neue',Helvetica,Arial,sans-serif;color:#444}h1,h2,h3{font-weight:600}h1{font-size:34px;line-height:1.1em;margin-bottom:14px}h2{font-size:28px;line-height:1.1em;margin-bottom:10px}h3{font-size:20px;line-height:1.1em;margin-bottom:8px}p+h2{margin-top:1.5em}p{margin:.85em 0}p img{margin:0}strong,b{font-weight:700}a{text-decoration:none;outline:#000;max-width:100%}a:visited{outline:#000;text-decoration:underline}p a,p a:visited{line-height:inherit}#top .avia_hidden_link_text{display:none}ul{margin-bottom:20px}ul{list-style:none outside;margin-left:7px}.entry-content-wrapper ul{list-style:disc outside}ul ul{margin:4px 0 5px 30px}ul ul li{margin-bottom:6px}.entry-content-wrapper li{margin-left:1em;padding:3px 0}.entry-content-wrapper div li{text-indent:0}img,a img{border:none;padding:0;margin:0;display:inline-block;max-width:100%;height:auto;image-rendering:optimizequality}[data-av_icon]:before{-webkit-font-smoothing:antialiased;font-weight:400;content:attr(data-av_icon);speak:none}body .alignright{float:right;margin:4px 0 0 10px;display:block;position:relative}body .aligncenter{clear:both;display:block;margin:10px auto;padding:10px 0;position:relative}#header{position:relative;z-index:501;width:100%;background-color:transparent;background-position:initial initial;background-repeat:initial initial}#header_main .container,.main_menu ul:first-child>li a{height:88px;line-height:88px}.av_phone_active_left .phone-info{float:left}.phone-info{float:left;font-weight:700;line-height:20px;font-size:11px;padding:5px 0}.phone-info span{display:inline-block;line-height:1em}#header_meta{border-top-style:none;z-index:10;min-height:30px;border-bottom-style:solid;border-bottom-width:1px;margin-bottom:-1px}#header_meta .container{min-height:30px}#header_main{border-bottom-width:1px;border-bottom-style:solid;z-index:1}.header_bg{position:absolute;top:0;left:0;width:100%;height:100%;opacity:.95;z-index:0;-webkit-perspective:1000px;-webkit-backface-visibility:hidden}.html_header_sticky_disabled .header_bg{opacity:1}.av-hamburger{padding:0;display:inline-block;font-family:inherit;font-size:inherit;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;color:inherit;text-transform:none;background-color:transparent;border:0;margin:0;overflow:visible}.av-hamburger-box{width:35px;height:24px;display:inline-block;position:relative}.av-hamburger-inner{display:block;top:50%;margin-top:-2px}.av-hamburger-inner,.av-hamburger-inner:before,.av-hamburger-inner:after{width:40px;height:3px;background-color:#000;border-top-left-radius:3px;border-top-right-radius:3px;border-bottom-right-radius:3px;border-bottom-left-radius:3px;position:absolute}.av-hamburger-inner:before,.av-hamburger-inner:after{content:'';display:block}.av-hamburger-inner:before{top:-10px}.av-hamburger-inner:after{bottom:-10px}.av-burger-menu-main{display:none}.av-burger-menu-main a{padding-left:10px}.av-hamburger strong{display:none}.av-hamburger-box{height:8px}.av-hamburger-inner,.av-hamburger-inner:before,.av-hamburger-inner:after{width:100%}#top #wrap_all #header .av-small-burger-icon a{padding:0}div .logo{float:left;position:absolute;left:0;z-index:1}.logo,.logo a{overflow:hidden;position:relative;display:block;height:100%}.logo img{padding:0;display:block;width:auto;height:auto;max-height:100%;image-rendering:auto;position:relative;z-index:2}.main_menu{clear:none;position:absolute;z-index:100;line-height:30px;height:100%;margin:0;right:0}.av-main-nav-wrap{float:left;position:relative;z-index:3}.av-main-nav-wrap ul{margin:0;padding:0}.av-main-nav{z-index:110;position:relative}.av-main-nav ul{display:none;margin-left:0;left:0;position:absolute;top:100%;width:208px;z-index:2;padding:0;box-shadow:rgba(0,0,0,.0980392) 0 8px 15px;margin-top:-1px}.av-main-nav ul li{margin:0;padding:0;width:100%}.av-main-nav ul li a{border-right-style:solid;border-right-width:1px;border-left-style:solid;border-left-width:1px}.av-main-nav ul li:last-child>a{border-bottom-style:solid;border-bottom-width:1px}.av-main-nav li{float:left;position:relative;z-index:20}.av-main-nav>li>ul{border-top-width:2px;border-top-style:solid}.av-main-nav>li{line-height:30px}.av-main-nav li a{max-width:none}.av-main-nav>li>a{display:block;text-decoration:none;padding:0 13px;font-weight:600;font-size:13px}#top .av-main-nav ul a{width:100%;height:auto;float:left;text-align:left;line-height:23px;padding:8px 15px;font-size:12px;min-height:23px;max-width:none;text-decoration:none;font-family:inherit}#top .av-main-nav ul ul{left:-207px;top:0;margin:0;border-top-style:solid;border-top-width:1px;padding-top:0}.avia-menu-fx{position:absolute;bottom:-1px;height:2px;z-index:10;width:100%;left:0;opacity:0;visibility:hidden}.avia-menu-fx .avia-arrow-wrap{height:10px;width:10px;position:absolute;top:-10px;left:50%;margin-left:-5px;overflow:hidden;display:none;visibility:hidden}.avia-menu-fx .avia-arrow-wrap .avia-arrow{top:10px}.html_main_nav_header.html_logo_left #top .main_menu .menu>li:last-child>a{padding-right:0}.main_menu .avia-bullet{display:none}.avia-bullet{display:block;position:absolute;height:0;width:0;top:51%;margin-top:-3px;left:-3px;border-left-width:3px;border-left-style:solid;border-left-color:green;border-top-width:3px!important;border-top-style:solid!important;border-top-color:transparent!important;border-bottom-width:3px!important;border-bottom-style:solid!important;border-bottom-color:transparent!important}#top #menu-item-search{z-index:100}#top .menu-item-search-dropdown>a{font-size:17px}#top #menu-item-search.menu-item-search-dropdown>a{border-left-style:none}.avia-arrow{height:10px;width:10px;position:absolute;top:-6px;left:50%;margin-left:-5px;-webkit-transform:rotate(45deg);border-width:1px;border-style:solid}.content{padding-top:50px;padding-bottom:50px;box-sizing:content-box;min-height:1px;z-index:1}.content{border-right-style:solid;border-right-width:1px;margin-right:-1px}.content .entry-content-wrapper{padding-right:50px}.fullsize .content{margin:0;border:none}.fullsize .content .entry-content-wrapper{padding-right:0}.template-page .entry-content-wrapper h1,.template-page .entry-content-wrapper h2{text-transform:uppercase;letter-spacing:1px}.widget{clear:both;position:relative;padding:30px 0;float:none}#top .widget ul{padding:0;margin:0;width:100%;float:left}.widget li{clear:both}#scroll-top-link{position:fixed;border-top-left-radius:2px;border-top-right-radius:2px;border-bottom-right-radius:2px;border-bottom-left-radius:2px;height:50px;width:50px;line-height:50px;text-decoration:none;text-align:center;opacity:0;right:50px;bottom:50px;z-index:1030;visibility:hidden}@media only screen and (max-width:989px) and (min-width:768px){.responsive .main_menu ul:first-child>li>a{padding:0 10px}.responsive #top .header_bg{opacity:1}.responsive #main .container_wrap:first-child{border-top-style:none}.responsive .logo{float:left}.responsive .logo img{margin:0}}@media only screen and (max-width:767px){.responsive .content .entry-content-wrapper{padding:0}.responsive .content{border:none}.responsive #top #wrap_all #header{position:relative;width:100%;float:none;height:auto;opacity:1;min-height:0;margin:0!important}.responsive #top #main{margin:0;padding-top:0!important}.responsive #top #main .container_wrap:first-child{border-top-style:none}.responsive .phone-info{float:none;width:100%;clear:both;text-align:center}.responsive .phone-info span{margin:0;padding:0;border:none}.responsive #top .logo{position:static;display:table;float:none;padding:0;border:none;width:80%;height:80px!important}.responsive .logo a{display:table-cell;vertical-align:middle}.responsive .logo img{width:auto;max-width:100%;display:block;max-height:80px;height:auto!important}.responsive #header_main .container{height:auto!important}.responsive #top .header_bg{opacity:1}.responsive .logo img{margin:0}.responsive .av-burger-menu-main{display:block}.responsive #top #wrap_all .main_menu{top:0;height:80px;left:auto;right:0;display:block;position:absolute}.responsive .main_menu ul:first-child>li a{height:80px;line-height:80px}.responsive #top .av-main-nav .menu-item{display:none}.responsive #top .av-main-nav .menu-item-avia-special{display:block}.responsive #top #wrap_all .menu-item-search-dropdown>a{font-size:24px}.responsive #top .av-logo-container .avia-menu{height:100%}.responsive #top #header_main>.container .main_menu .av-main-nav>li>a,.responsive #top #wrap_all .av-logo-container{height:80px;line-height:80px}.responsive #top #wrap_all .av-logo-container{padding:0}.responsive #top #header_main>.container .main_menu .av-main-nav>li>a{min-width:0;padding:0 0 0 20px;margin:0;border-style:none;border-width:0}.responsive #top #header .av-main-nav>li>a{background-color:transparent;color:inherit;background-position:initial initial;background-repeat:initial initial}.widget li{line-height:1.8em;font-size:15px}.responsive #scroll-top-link{display:none}}.hr{clear:both;display:block;width:100%;height:25px;line-height:25px;position:relative;margin:30px 0;float:left}#top .hr-invisible{margin:0;border:none}.hr-invisible{float:none}body .container_wrap .hr.avia-builder-el-last{margin:30px 0}.avia-icon-list .iconlist-timeline{position:absolute;top:1%;left:32px;width:1px;height:99%;border-right-width:1px;border-right-style:dashed}.avia-icon-list li:last-child .iconlist-timeline{display:none}#top .tabcontainer{background-color:transparent;background-position:initial initial;background-repeat:initial initial}.tabcontainer{margin:30px 0;position:relative;width:100%;clear:both;overflow:hidden;background-color:transparent;background-position:initial initial;background-repeat:initial initial}.tabcontainer .tab_icon{margin-right:7px;font-size:1em}.tab_inner_content{margin:11px 0;left:-200%;position:relative}.active_tab_content .tab_inner_content{left:0;position:relative}.sidebar_tab .tab_content{overflow:hidden;clear:none;left:-1px}.sidebar_tab_left .active_tab.tab{width:100.5%;border-right-style:none}@media only screen and (max-width:767px){.responsive .tabcontainer{border-right-width:1px;border-bottom-width:1px;border-left-width:1px;border-style:none solid solid;overflow:hidden}.responsive .tabcontainer .tab_content,.responsive .tabcontainer .tab{width:100%;max-width:100%;border-left-style:none;border-right-width:0;left:0;top:0;min-height:0px!important}.responsive .tabcontainer .tab_content{border-bottom-style:none;padding:15px 30px;clear:both}}body .container_wrap .avia-builder-el-no-sibling{margin-top:0;margin-bottom:0}body .container_wrap .avia-builder-el-last{margin-bottom:0}body .container_wrap .avia-builder-el-first{margin-top:0}#top .av_inherit_color *{color:inherit}.avia_textblock{clear:both;line-height:1.65em}body .column-top-margin{margin-top:50px}.avia-section{clear:both;width:100%;float:left;min-height:100px;position:static}#top #main .avia-section .template-page{width:100%;border:none;margin-left:auto;padding-left:0;margin-right:auto}.avia-section .template-page .entry-content-wrapper{padding-right:0}.avia-section-no-padding .content{padding-top:0;padding-bottom:0}.html_header_sticky_disabled .container_wrap:first-child{border-top-style:none}#top #wrap_all #main .avia-no-border-styling{border:none}.avia-builder-widget-area{position:relative}.flex_column .widget:first-child,.content .widget:first-child{padding-top:0;border-top-style:none}html,#scroll-top-link{background-color:#333738}#scroll-top-link{color:#fff;border:1px solid #e1e1e1}.html_stretched #wrap_all{background-color:#333738}.main_color,.main_color div,.main_color main,.main_color section,.main_color span,.main_color h1,.main_color h2,.main_color h3,.main_color p,.main_color a,.main_color img,.main_color b,.main_color ul,.main_color li,.main_color section{border-color:#e1e1e1}.main_color{background-color:#fff;color:#666}.main_color h1,.main_color h2,.main_color h3{color:#222}.main_color a,.main_color b{color:#198bb5}.main_color *::-webkit-input-placeholder{color:#919191}.main_color .avia-icon-list .iconlist-timeline{border-color:#e1e1e1}div .main_color .tabcontainer .active_tab_content,div .main_color .tabcontainer .active_tab{background-color:#f8f8f8;color:#666}#top .main_color .tabcontainer .tab.active_tab{color:#666}.main_color .sidebar_tab,.main_color .tabcontainer .tab{color:#919191}@media only screen and (max-width:767px){.responsive #top .main_color .tabcontainer .active_tab{background-color:#198bb5;color:#fff}.responsive #top .main_color .tabcontainer{border-color:#e1e1e1}.responsive #top .main_color .active_tab_content{background-color:#f8f8f8}}#main{border-color:#e1e1e1}.header_color,.header_color div,.header_color nav,.header_color span,.header_color a,.header_color address,.header_color img,.header_color strong,.header_color b,.header_color ul,.header_color li,.header_color nav{border-color:#e1e1e1}.header_color{background-color:#fff;color:#666}.header_color .phone-info,.header_color .phone-info a{color:#919191}.header_color a,.header_color strong,.header_color b{color:#198bb5}.header_color .avia-menu-fx,.header_color .avia-menu-fx .avia-arrow{background-color:#198bb5;color:#fff;border-color:#076993}.header_color .container_wrap_meta{background-color:#ededed;background-position:initial initial;background-repeat:initial initial}.header_color .avia-bullet{border-color:#198bb5}.html_header_top .header_color .main_menu ul:first-child>li>ul{border-top-color:#198bb5}.header_color *::-webkit-input-placeholder{color:#919191}.header_color .header_bg,.header_color .main_menu ul ul,.header_color .main_menu .menu ul li a{background-color:#fff;color:#919191}.header_color .main_menu ul:first-child>li>a{color:#919191}#main{background-color:#fff}.header_color .av-hamburger-inner,.header_color .av-hamburger-inner:before,.header_color .av-hamburger-inner:after{background-color:#919191}h1,h2,h3{font-family:'open sans',HelveticaNeue,'Helvetica Neue',Helvetica-Neue,Helvetica,Arial,sans-serif}body.open_sans{font-family:'open sans',HelveticaNeue,'Helvetica Neue',Helvetica-Neue,Helvetica,Arial,sans-serif}@media only screen and (max-width:767px){.av-burger-menu-main{display:block!important}.main_menu .avia-menu{display:block!important}}@media (min-width:1500px){#top #header .av-main-nav>li>ul>li>ul{right:0!important;left:207px!important}}@media not all and (min-width:1500px){#top #header .av-main-nav>li>ul>li:not(#menu-item-6768)>ul{right:0!important;left:207px!important}}.main_menu ul:first-child>li>ul>li>a{font-size:13px!important}.main_menu ul:first-child>li>ul>li>ul>li>a{font-size:12px!important}@media only screen and (max-width:990px){nav.main_menu{display:block!important}.responsive .container{width:800px}}.phone-info{color:#fff;font-size:14px;font-weight:100}.phone-info b{color:#fff}#top #header .av-main-nav>li>a .avia-menu-text{color:#000;text-transform:uppercase}body .column-top-margin{margin-top:0}#header_main{border-bottom-width:1px;border-bottom-style:solid;z-index:1;height:120px}h3{font-size:20px;line-height:1.1em;margin-bottom:0}.template-page .entry-content-wrapper h2{text-transform:none;letter-spacing:1px}header,nav,section{margin:0;padding:0;border:0}#header_main .container,.main_menu ul:first-child>li a{height:88px;line-height:100px}img{vertical-align:top}.av-main-nav ul{box-shadow:rgba(0,0,0,.0980392) 0 8px 15px;display:none;left:0;margin-left:15px;margin-top:-10px;padding:0;position:absolute;top:100%;width:208px;z-index:2}.avia-menu-fx{display:none}div .main_color .tabcontainer .active_tab_content,div .main_color .tabcontainer .active_tab{background-color:#fff;color:#666}#header_main{border-bottom-width:1px;border-bottom-style:solid;z-index:1;height:100px;width:98%}.logo,.logo a{display:block;height:100%;overflow:hidden;margin-top:3px}.entry-content-wrapper div li{text-indent:0;margin-left:0}.main_prd{margin-left:20px;margin-right:20px;margin-top:0}.product-safeguard{width:298px;background-image:none;background-attachment:scroll;background-color:transparent;text-align:center;padding:17px 0 0;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-right-radius:10px;border-bottom-left-radius:10px;overflow:hidden;vertical-align:top;border:1px solid #cde6e5;background-position:0 0;background-repeat:repeat repeat}.entry-content-wrapper li{margin-left:1em;padding:4px 0}p{margin:1.3em 0}.entry-content-wrapper div li{text-indent:0;margin-left:0;padding-left:13px;padding-top:7px}ul{list-style:none outside;margin-left:20px}.logo img{padding:10px;display:block;width:100%;height:auto;max-height:100%;image-rendering:auto;position:relative;z-index:2}.template-page .entry-content-wrapper h1{text-transform:none;letter-spacing:0}.widget{padding:0 0 25px}.main_color b{color:#666!important}#top .av-main-nav ul ul{left:207px}.container{width:90%}.responsive .container{max-width:1160px}#top #wrap_all .all_colors h2{color:#fff}#top #header .av-main-nav>li>a{color:#000;font-size:16px}#top #header .av-main-nav>li>a .avia-menu-text{color:#000}#top #header_meta{background-color:#333738}#top .all_colors strong{color:#666}#top #wrap_all .main_color h1{color:#006e8c;font-size:30px}#top #wrap_all .all_colors h3{color:#39698d}#top #header_meta{background-color:#333738}#top #header_meta a,#top #header_meta .phone-info{color:#fff}.ninja-forms-noscript-message{background-color:#f1f1f1;border:4px dashed #ccc;color:#333;display:block;font-size:20px;margin:20px 0;padding:40px;text-align:center;background-position:initial initial;background-repeat:initial initial}.nf-loading-spinner{width:40px;height:40px;margin:100px auto;background-color:rgba(209,209,209,.498039);border-top-left-radius:100%;border-top-right-radius:100%;border-bottom-right-radius:100%;border-bottom-left-radius:100%}ul{box-sizing:border-box}:root{--wp--preset--font-size--normal:16px;--wp--preset--font-size--huge:42px}.aligncenter{clear:both}body{--wp--preset--color--black:#000;--wp--preset--color--cyan-bluish-gray:#abb8c3;--wp--preset--color--white:#fff;--wp--preset--color--pale-pink:#f78da7;--wp--preset--color--vivid-red:#cf2e2e;--wp--preset--color--luminous-vivid-orange:#ff6900;--wp--preset--color--luminous-vivid-amber:#fcb900;--wp--preset--color--light-green-cyan:#7bdcb5;--wp--preset--color--vivid-green-cyan:#00d084;--wp--preset--color--pale-cyan-blue:#8ed1fc;--wp--preset--color--vivid-cyan-blue:#0693e3;--wp--preset--color--vivid-purple:#9b51e0;--wp--preset--color--metallic-red:#b02b2c;--wp--preset--color--maximum-yellow-red:#edae44;--wp--preset--color--yellow-sun:#ee2;--wp--preset--color--palm-leaf:#83a846;--wp--preset--color--aero:#7bb0e7;--wp--preset--color--old-lavender:#745f7e;--wp--preset--color--steel-teal:#5f8789;--wp--preset--color--raspberry-pink:#d65799;--wp--preset--color--medium-turquoise:#4ecac2;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple:linear-gradient(135deg,rgba(6,147,227,1) 0%,#9b51e0 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan:linear-gradient(135deg,#7adcb4 0%,#00d082 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange:linear-gradient(135deg,rgba(252,185,0,1) 0%,rgba(255,105,0,1) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red:linear-gradient(135deg,rgba(255,105,0,1) 0%,#cf2e2e 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray:linear-gradient(135deg,#eee 0%,#a9b8c3 100%);--wp--preset--gradient--cool-to-warm-spectrum:linear-gradient(135deg,#4aeadc 0%,#9778d1 20%,#cf2aba 40%,#ee2c82 60%,#fb6962 80%,#fef84c 100%);--wp--preset--gradient--blush-light-purple:linear-gradient(135deg,#ffceec 0%,#9896f0 100%);--wp--preset--gradient--blush-bordeaux:linear-gradient(135deg,#fecda5 0%,#fe2d2d 50%,#6b003e 100%);--wp--preset--gradient--luminous-dusk:linear-gradient(135deg,#ffcb70 0%,#c751c0 50%,#4158d0 100%);--wp--preset--gradient--pale-ocean:linear-gradient(135deg,#fff5cb 0%,#b6e3d4 50%,#33a7b5 100%);--wp--preset--gradient--electric-grass:linear-gradient(135deg,#caf880 0%,#71ce7e 100%);--wp--preset--gradient--midnight:linear-gradient(135deg,#020381 0%,#2874fc 100%);--wp--preset--duotone--dark-grayscale:url('#wp-duotone-dark-grayscale');--wp--preset--duotone--grayscale:url('#wp-duotone-grayscale');--wp--preset--duotone--purple-yellow:url('#wp-duotone-purple-yellow');--wp--preset--duotone--blue-red:url('#wp-duotone-blue-red');--wp--preset--duotone--midnight:url('#wp-duotone-midnight');--wp--preset--duotone--magenta-yellow:url('#wp-duotone-magenta-yellow');--wp--preset--duotone--purple-green:url('#wp-duotone-purple-green');--wp--preset--duotone--blue-orange:url('#wp-duotone-blue-orange');--wp--preset--font-size--small:1rem;--wp--preset--font-size--medium:1.125rem;--wp--preset--font-size--large:1.75rem;--wp--preset--font-size--x-large:clamp(1.75rem,3vw,2.25rem);--wp--preset--spacing--20:.44rem;--wp--preset--spacing--30:.67rem;--wp--preset--spacing--40:1rem;--wp--preset--spacing--50:1.5rem;--wp--preset--spacing--60:2.25rem;--wp--preset--spacing--70:3.38rem;--wp--preset--spacing--80:5.06rem}body{margin:0;--wp--style--global--content-size:800px;--wp--style--global--wide-size:1130px}body{padding-top:0;padding-right:0;padding-bottom:0;padding-left:0}html{min-width:910px}html.responsive{min-width:0}.container{position:relative;width:100%;margin:0 auto;padding:0 50px;clear:both}.inner-container{position:relative;height:100%;width:100%}.container_wrap{clear:both;position:relative;border-top-style:solid;border-top-width:1px}.units{float:left;display:inline;margin-left:50px;position:relative;z-index:1;min-height:1px}#wrap_all{width:100%;position:static;z-index:2;overflow:hidden}body .units.alpha,body div .first{margin-left:0;clear:left}body .units.alpha{width:100%}.container .av-content-full.units{width:100%}.container{max-width:1010px}@media only screen and (min-width:768px) and (max-width:989px){.responsive #top{overflow-x:hidden}.responsive .container{max-width:782px}}@media only screen and (max-width:767px){.responsive #top{overflow-x:hidden}.responsive #top #wrap_all .container{width:85%;max-width:85%;margin:0 auto;padding-left:0;padding-right:0;float:none}.responsive .units{margin:0}.responsive #top #wrap_all .flex_column{margin:0;margin-bottom:20px;width:100%}}.container:after{content:"20";display:block;height:0;clear:both;visibility:hidden}.clearfix:after,.clearfix:before,.flex_column:after,.flex_column:before,.widget:after,.widget:before{content:'20';display:block;overflow:hidden;visibility:hidden;width:0;height:0}.clearfix:after,.flex_column:after{clear:both}.clearfix{zoom:1}body div .first{margin-left:0}div .flex_column{z-index:1;float:left;position:relative;min-height:1px;width:100%}div .av_one_third{margin-left:6%;width:29.333333333333332%}div .av_two_third{margin-left:6%;width:64.66666666666666%}a,address,b,blockquote,body,div,h1,h2,h3,header,html,img,li,nav,p,section,span,strong,ul{margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline}header,nav,section{display:block}body{line-height:1em}ul{list-style:none}*{-moz-box-sizing:border-box;-webkit-box-sizing:border-box;box-sizing:border-box}.responsive body,html.responsive{overflow-x:hidden}body{font:13px/1.65em HelveticaNeue,"Helvetica Neue",Helvetica,Arial,sans-serif;color:#444;-webkit-text-size-adjust:100%}h1,h2,h3{font-weight:600}h1{font-size:34px;line-height:1.1em;margin-bottom:14px}h2{font-size:28px;line-height:1.1em;margin-bottom:10px}h3{font-size:20px;line-height:1.1em;margin-bottom:8px}p+h2{margin-top:1.5em}p{margin:.85em 0}p img{margin:0}b,strong{font-weight:700}blockquote{border-left-style:solid;border-left-width:7px;padding-left:20px;margin-bottom:1em;margin-right:1em;font-size:1.235em;line-height:1.5em}a{text-decoration:none;outline:0;max-width:100%}a:visited{outline:0;text-decoration:underline}p a,p a:visited{line-height:inherit}#top .avia_hidden_link_text{display:none}ul{margin-bottom:20px}ul{list-style:none outside;margin-left:7px}.entry-content-wrapper ul{list-style:disc outside}ul ul{margin:4px 0 5px 30px}ul ul li{margin-bottom:6px}.entry-content-wrapper li{margin-left:1em;padding:3px 0}.entry-content-wrapper div li{text-indent:0}a img,img{border:none;padding:0;margin:0;display:inline-block;max-width:100%;height:auto}[data-av_icon]:before{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-weight:400;content:attr(data-av_icon);speak:never}body .alignright{float:right;margin:4px 0 0 10px;display:block;position:relative}body .aligncenter{clear:both;display:block;margin:10px auto;padding:10px 0;position:relative}#header{position:relative;z-index:501;width:100%;background:0 0}#header_main .container,.main_menu ul:first-child>li a{height:88px;line-height:88px}.av_phone_active_left .phone-info{float:left}.phone-info{float:left;font-weight:700;line-height:20px;font-size:11px;padding:5px 0}.phone-info div{display:inline-block;line-height:1em}#header_meta{border-top:none;z-index:10;min-height:30px;border-bottom-style:solid;border-bottom-width:1px;margin-bottom:-1px}#header_meta .container{min-height:30px}#header_main{border-bottom-width:1px;border-bottom-style:solid;z-index:1}.header_bg{position:absolute;top:0;left:0;width:100%;height:100%;opacity:.95;z-index:0;-webkit-perspective:1000px;-webkit-backface-visibility:hidden}.html_header_sticky_disabled .header_bg{opacity:1}.av-hamburger{padding:0;display:inline-block;font:inherit;color:inherit;text-transform:none;background-color:transparent;border:0;margin:0;overflow:visible}.av-hamburger-box{width:35px;height:24px;display:inline-block;position:relative}.av-hamburger-inner{display:block;top:50%;margin-top:-2px}.av-hamburger-inner,.av-hamburger-inner:after,.av-hamburger-inner:before{width:40px;height:3px;background-color:#000;border-radius:3px;position:absolute}.av-hamburger-inner:after,.av-hamburger-inner:before{content:"";display:block}.av-hamburger-inner:before{top:-10px}.av-hamburger-inner:after{bottom:-10px}.av-burger-menu-main{display:none}.av-burger-menu-main a{padding-left:10px}.av-hamburger strong{display:none}.av-hamburger-box{height:8px}.av-hamburger-inner,.av-hamburger-inner:after,.av-hamburger-inner:before{width:100%}#top .av-small-burger-icon{-ms-transform:scale(.6);transform:scale(.6);transform-origin:right}#top #wrap_all #header .av-small-burger-icon a{padding:0}div .logo{float:left;position:absolute;left:0;z-index:1}.logo,.logo a{overflow:hidden;position:relative;display:block;height:100%}.logo img{padding:0;display:block;width:auto;height:auto;max-height:100%;image-rendering:auto;position:relative;z-index:2}.main_menu{clear:none;position:absolute;z-index:100;line-height:30px;height:100%;margin:0;right:0}.av-main-nav-wrap{float:left;position:relative;z-index:3}.av-main-nav-wrap ul{margin:0;padding:0}.av-main-nav{z-index:110;position:relative}.av-main-nav ul{display:none;margin-left:0;left:0;position:absolute;top:100%;width:208px;z-index:2;padding:0;box-shadow:0 8px 15px rgba(0,0,0,.1);margin-top:-1px}.av-main-nav ul li{margin:0;padding:0;width:100%}.av-main-nav ul li a{border-right-style:solid;border-right-width:1px;border-left-style:solid;border-left-width:1px}.av-main-nav ul li:last-child>a{border-bottom-style:solid;border-bottom-width:1px}.av-main-nav li{float:left;position:relative;z-index:20}.av-main-nav>li>ul{border-top-width:2px;border-top-style:solid}.av-main-nav>li{line-height:30px}.av-main-nav li a{max-width:none}.av-main-nav>li>a{display:block;text-decoration:none;padding:0 13px;font-weight:400;font-weight:600;font-size:13px}#top .av-main-nav ul a{width:100%;height:auto;float:left;text-align:left;line-height:23px;padding:8px 15px;font-size:12px;min-height:23px;max-width:none;text-decoration:none;font-family:inherit}#top .av-main-nav ul ul{left:-207px;top:0;margin:0;border-top-style:solid;border-top-width:1px;padding-top:0}.avia-menu-fx{position:absolute;bottom:-1px;height:2px;z-index:10;width:100%;left:0;opacity:0;visibility:hidden}.avia-menu-fx .avia-arrow-wrap{height:10px;width:10px;position:absolute;top:-10px;left:50%;margin-left:-5px;overflow:hidden;display:none;visibility:hidden}.avia-menu-fx .avia-arrow-wrap .avia-arrow{top:10px}.html_main_nav_header.html_logo_left #top .main_menu .menu>li:last-child>a{padding-right:0}.main_menu .avia-bullet{display:none}.avia-bullet{display:block;position:absolute;height:0;width:0;top:51%;margin-top:-3px;left:-3px;border-top:3px solid transparent!important;border-bottom:3px solid transparent!important;border-left:3px solid green}#top #menu-item-search{z-index:100}#top .menu-item-search-dropdown>a{font-size:17px}#top #menu-item-search.menu-item-search-dropdown>a{border-left:none}.avia-arrow{height:10px;width:10px;position:absolute;top:-6px;left:50%;margin-left:-5px;-webkit-transform:rotate(45deg);transform:rotate(45deg);border-width:1px;border-style:solid}.content{padding-top:50px;padding-bottom:50px;-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box;min-height:1px;z-index:1}.content{border-right-style:solid;border-right-width:1px;margin-right:-1px}.content .entry-content-wrapper{padding-right:50px}.fullsize .content{margin:0;border:none}.fullsize .content .entry-content-wrapper{padding-right:0}.template-page .entry-content-wrapper h1,.template-page .entry-content-wrapper h2{text-transform:uppercase;letter-spacing:1px}.widget{clear:both;position:relative;padding:30px 0;float:none}#top .widget ul{padding:0;margin:0;width:100%;float:left}.widget li{clear:both}#scroll-top-link{position:fixed;border-radius:2px;height:50px;width:50px;line-height:50px;text-decoration:none;text-align:center;opacity:0;right:50px;bottom:50px;z-index:1030;visibility:hidden}@media only screen and (min-width:768px) and (max-width:989px){.responsive .main_menu ul:first-child>li>a{padding:0 10px}.responsive #top .header_bg{opacity:1}.responsive #main .container_wrap:first-child{border-top:none}.responsive .logo{float:left}.responsive .logo img{margin:0}.responsive.html_mobile_menu_tablet .av-burger-menu-main{display:block}.responsive #top #wrap_all .av_mobile_menu_tablet .main_menu{top:0;left:auto;right:0;display:block}.responsive #top .av_mobile_menu_tablet .av-main-nav .menu-item{display:none}.responsive #top .av_mobile_menu_tablet .av-main-nav .menu-item-avia-special{display:block}.responsive #top #wrap_all .av_mobile_menu_tablet .menu-item-search-dropdown>a{font-size:24px}.responsive.html_mobile_menu_tablet #top #wrap_all #header{position:relative;width:100%;float:none;height:auto;margin:0!important;opacity:1;min-height:0}.responsive.html_mobile_menu_tablet #top #wrap_all .menu-item-search-dropdown>a{font-size:24px}.responsive.html_mobile_menu_tablet.html_header_top #top #main{padding-top:0!important;margin:0}.responsive.html_mobile_menu_tablet #top #header_main>.container .main_menu .av-main-nav>li>a,.responsive.html_mobile_menu_tablet #top #wrap_all .av-logo-container{height:90px;line-height:90px}.responsive.html_mobile_menu_tablet #top #header_main>.container .main_menu .av-main-nav>li>a{min-width:0;padding:0 0 0 20px;margin:0;border-style:none;border-width:0}.responsive.html_mobile_menu_tablet #top #header .av-main-nav>li>a{background:0 0;color:inherit}}@media only screen and (max-width:767px){.responsive .content .entry-content-wrapper{padding:0}.responsive .content{border:none}.responsive #top #wrap_all #header{position:relative;width:100%;float:none;height:auto;margin:0!important;opacity:1;min-height:0}.responsive #top #main{padding-top:0!important;margin:0}.responsive #top #main .container_wrap:first-child{border-top:none}.responsive .phone-info{float:none;width:100%;clear:both;text-align:center}.responsive .phone-info div{margin:0;padding:0;border:none}.responsive #top .logo{position:static;display:table;height:80px!important;float:none;padding:0;border:none;width:80%}.responsive .logo a{display:table-cell;vertical-align:middle}.responsive .logo img{height:auto!important;width:auto;max-width:100%;display:block;max-height:80px}.responsive #header_main .container{height:auto!important}.responsive #top .header_bg{opacity:1}.responsive .logo img{margin:0}.responsive .av-burger-menu-main{display:block}.responsive #top #wrap_all .main_menu{top:0;height:80px;left:auto;right:0;display:block;position:absolute}.responsive .main_menu ul:first-child>li a{height:80px;line-height:80px}.responsive #top .av-main-nav .menu-item{display:none}.responsive #top .av-main-nav .menu-item-avia-special{display:block}.responsive #top #wrap_all .menu-item-search-dropdown>a{font-size:24px}.responsive #top .av-logo-container .avia-menu{height:100%}.responsive #top #header_main>.container .main_menu .av-main-nav>li>a,.responsive #top #wrap_all .av-logo-container{height:80px;line-height:80px}.responsive #top #wrap_all .av-logo-container{padding:0}.responsive #top #header_main>.container .main_menu .av-main-nav>li>a{min-width:0;padding:0 0 0 20px;margin:0;border-style:none;border-width:0}.responsive #top #header .av-main-nav>li>a{background:0 0;color:inherit}.widget li{line-height:1.8em;font-size:15px}.responsive #scroll-top-link{display:none}}.hr{clear:both;display:block;width:100%;height:25px;line-height:25px;position:relative;margin:30px 0;float:left}#top .hr-invisible{margin:0;border:none}.hr-invisible{float:none}body .container_wrap .hr.avia-builder-el-last{margin:30px 0}.avia-icon-list .iconlist-timeline{position:absolute;top:1%;left:32px;width:1px;height:99%;border-right-width:1px;border-right-style:dashed}.avia-icon-list li:last-child .iconlist-timeline{display:none}#top .tabcontainer{background:0 0}.tabcontainer{margin:30px 0;position:relative;width:100%;clear:both;overflow:hidden;background:0 0}.tabcontainer .tab_icon{margin-right:7px;font-size:1em}.tab_inner_content{margin:11px 0;left:-200%;position:relative}.active_tab_content .tab_inner_content{left:0;position:relative}.sidebar_tab .tab_content{overflow:hidden;clear:none;left:-1px}.sidebar_tab_left .active_tab.tab{width:100.5%;border-right:none}@media only screen and (max-width:767px){.responsive .tabcontainer{border-width:1px;border-style:solid;border-top:none;overflow:hidden}.responsive .tabcontainer .tab,.responsive .tabcontainer .tab_content{width:100%;max-width:100%;border-left:none;border-right:0;left:0;top:0;min-height:0!important}.responsive .tabcontainer .tab_content{border-bottom:none;padding:15px 30px;clear:both}}body .container_wrap .avia-builder-el-no-sibling{margin-top:0;margin-bottom:0}body .container_wrap .avia-builder-el-last{margin-bottom:0}body .container_wrap .avia-builder-el-first{margin-top:0}#top .av_inherit_color *{color:inherit}.avia_textblock{clear:both;line-height:1.65em}body .column-top-margin{margin-top:50px}.avia-section{clear:both;width:100%;float:left;min-height:100px;position:static}#top #main .avia-section .template-page{width:100%;border:none;margin-left:auto;padding-left:0;margin-right:auto}.avia-section .template-page .entry-content-wrapper{padding-right:0}.avia-section-no-padding .content{padding-top:0;padding-bottom:0}.html_header_sticky_disabled .container_wrap:first-child{border-top:none}#top #wrap_all #main .avia-no-border-styling{border:none}.avia-builder-widget-area{position:relative}.content .widget:first-child,.flex_column .widget:first-child{padding-top:0;border-top:none}.textwidget ul{margin-left:0;overflow:hidden}:root{--enfold-socket-color-bg:#333738;--enfold-socket-color-bg2:#f8f8f8;--enfold-socket-color-primary:#333738;--enfold-socket-color-secondary:#198bb5;--enfold-socket-color-color:#fff;--enfold-socket-color-meta:#fff;--enfold-socket-color-heading:#fff;--enfold-socket-color-border:#e1e1e1;--enfold-footer-color-bg:#d8dbde;--enfold-footer-color-bg2:#f8f8f8;--enfold-footer-color-primary:#198bb5;--enfold-footer-color-secondary:#198bb5;--enfold-footer-color-color:#39698d;--enfold-footer-color-meta:#6f8094;--enfold-footer-color-heading:#6f8094;--enfold-footer-color-border:#e1e1e1;--enfold-alternate-color-bg:#fff;--enfold-alternate-color-bg2:#f8f8f8;--enfold-alternate-color-primary:#719430;--enfold-alternate-color-secondary:#8bba34;--enfold-alternate-color-color:#666;--enfold-alternate-color-meta:#919191;--enfold-alternate-color-heading:#222;--enfold-alternate-color-border:#e1e1e1;--enfold-main-color-bg:#fff;--enfold-main-color-bg2:#f8f8f8;--enfold-main-color-primary:#198bb5;--enfold-main-color-secondary:#198bb5;--enfold-main-color-color:#666;--enfold-main-color-meta:#919191;--enfold-main-color-heading:#222;--enfold-main-color-border:#e1e1e1;--enfold-header-color-bg:#fff;--enfold-header-color-bg2:#ededed;--enfold-header-color-primary:#198bb5;--enfold-header-color-secondary:#000;--enfold-header-color-color:#666;--enfold-header-color-meta:#919191;--enfold-header-color-heading:#222;--enfold-header-color-border:#e1e1e1;--enfold-font-family-theme-body:"HelveticaNeue","Helvetica Neue",Helvetica,Arial,sans-serif;--enfold-font-size-theme-content:13px;--enfold-font-size-theme-h1:34px;--enfold-font-size-theme-h2:28px;--enfold-font-size-theme-h3:20px;--enfold-font-size-theme-h4:18px;--enfold-font-size-theme-h5:16px;--enfold-font-size-theme-h6:14px}html,#scroll-top-link{background-color:#333738}#scroll-top-link{color:#fff;border:1px solid #e1e1e1}.main_color,.main_color div,.main_color main,.main_color section,.main_color span,.main_color h1,.main_color h2,.main_color h3,.main_color p,.main_color blockquote,.main_color a,.main_color img,.main_color b,.main_color ul,.main_color li,.main_color section{border-color:#e1e1e1}.main_color{background-color:#fff;color:#666}.main_color h1,.main_color h2,.main_color h3{color:#222}.main_color blockquote{color:#919191}.main_color a,.main_color b,.main_color b a{color:#198bb5}.main_color blockquote{border-color:#198bb5}.main_color ::-webkit-input-placeholder{color:#919191}.main_color ::-moz-placeholder{color:#919191;opacity:1}.main_color :-ms-input-placeholder{color:#919191}.main_color .avia-icon-list .iconlist-timeline{border-color:#e1e1e1}div .main_color .tabcontainer .active_tab_content,div .main_color .tabcontainer .active_tab{background-color:#f8f8f8;color:#666}#top .main_color .tabcontainer .tab.active_tab{color:#666}.main_color .sidebar_tab,.main_color .tabcontainer .tab{color:#919191}@media only screen and (max-width:767px){.responsive #top .main_color .tabcontainer .active_tab{background-color:#198bb5;color:#fff}.responsive #top .main_color .tabcontainer{border-color:#e1e1e1}.responsive #top .main_color .active_tab_content{background-color:#f8f8f8}}#main{border-color:#e1e1e1}.html_stretched #wrap_all{background-color:#fff}.header_color,.header_color div,.header_color nav,.header_color span,.header_color a,.header_color address,.header_color img,.header_color strong,.header_color b,.header_color ul,.header_color li,.header_color nav{border-color:#e1e1e1}.header_color{background-color:#fff;color:#666}.header_color .phone-info,.header_color .phone-info a{color:#919191}.header_color a,.header_color strong,.header_color b{color:#198bb5}.header_color .avia-menu-fx,.header_color .avia-menu-fx .avia-arrow{background-color:#198bb5;color:#fff;border-color:#076993}.header_color .container_wrap_meta{background:#ededed}.header_color .avia-bullet{border-color:#198bb5}.html_header_top .header_color .main_menu ul:first-child>li>ul{border-top-color:#198bb5}.header_color ::-webkit-input-placeholder{color:#919191}.header_color ::-moz-placeholder{color:#919191;opacity:1}.header_color :-ms-input-placeholder{color:#919191}.header_color .header_bg,.header_color .main_menu ul ul,.header_color .main_menu .menu ul li a{background-color:#fff;color:#919191}.header_color .main_menu ul:first-child>li>a{color:#919191}#main{background-color:#fff}.header_color .av-hamburger-inner,.header_color .av-hamburger-inner:before,.header_color .av-hamburger-inner:after{background-color:#919191}h1,h2,h3{font-family:'open sans',Helvetica,Arial,sans-serif}:root{--enfold-font-family-heading:'open sans',Helvetica,Arial,sans-serif}body.open_sans{font-family:'open sans',Helvetica,Arial,sans-serif}:root{--enfold-font-family-body:'open sans',Helvetica,Arial,sans-serif}@media only screen and (max-width:1080px){.av-burger-menu-main{display:block!important}.main_menu .avia-menu{display:block!important}.menu-item{display:none}.main_menu{display:block!important}.av-burger-menu-main.menu-item-avia-special{display:block}#menu-item-search{display:block!important}}h2{a{color:#6F8094 !important;&:hover{color:#37404e !important}}}@media all and (min-width:1500px){#top #header .av-main-nav>li>ul>li>ul{right:0!important;left:207px!important}}@media not all and (min-width:1500px){#top #header .av-main-nav>li>ul>li:not(#menu-item-6768)>ul{right:0!important;left:207px!important}}.main_menu ul:first-child>li>ul>li>a{font-size:13px!important}.main_menu ul:first-child>li>ul>li>ul>li>a{font-size:12px!important}@media only screen and (max-width:990px){nav.main_menu{display:block!important}.responsive .container{width:800px}}.phone-info{color:#fff;font-size:14px;font-weight:100;padding-left:28px!important}.phone-info b{color:#fff}#top #header .av-main-nav>li>a .avia-menu-text{color:#000;text-transform:uppercase}body .column-top-margin{margin-top:0}#header_main{border-bottom-width:1px;border-bottom-style:solid;z-index:1;height:120px}h3{font-size:20px;line-height:1.1em;margin-bottom:0}.template-page .entry-content-wrapper h2{text-transform:none;letter-spacing:1px}header,nav,section{margin:0;padding:0;border:0}#header_main .container,.main_menu ul:first-child>li a{height:88px;line-height:100px}img{vertical-align:top}.av-main-nav ul{box-shadow:0 8px 15px rgba(0,0,0,.1);display:none;left:0;margin-left:15px;margin-top:-10px;padding:0;position:absolute;top:100%;width:208px;z-index:2}.avia-menu-fx{display:none}div .main_color .tabcontainer .active_tab_content,div .main_color .tabcontainer .active_tab{background-color:#fff;color:#666}#header_main{border-bottom-width:1px;border-bottom-style:solid;z-index:1;height:100px;width:98%}.logo,.logo a{display:block;height:100%;overflow:hidden;margin-top:3px}.entry-content-wrapper div li{text-indent:0px;margin-left:0}.main_prd{margin-left:20px;margin-right:20px;margin-top:0}.product-safeguard{width:298px;background:none repeat scroll 0% 0% transparent;text-align:center;padding:17px 0 0;border-radius:10px;overflow:hidden;vertical-align:top;border:1px solid #cde6e5}.entry-content-wrapper li{margin-left:1em;padding:4px 0}p{margin:1.3em 0}.entry-content-wrapper div li{text-indent:0px;margin-left:0;padding-left:13px;padding-top:7px}ul{list-style:none outside;margin-left:20px}.logo img{padding:10px;display:block;width:100%;height:auto;max-height:100%;image-rendering:auto;position:relative;z-index:2;height:100%;height:auto}.template-page .entry-content-wrapper h1{text-transform:none;letter-spacing:0px}.widget{padding:0 0 25px}.main_color b{color:#666666!important}#top .av-main-nav ul ul{left:207px}.container{width:90%}.responsive .container{max-width:1160px}#top #wrap_all .all_colors h2{color:#fff}#top #header .av-main-nav>li>a{color:#000;font-size:16px}#top #header .av-main-nav>li>a .avia-menu-text{color:#000}#top #header_meta{background-color:#333738}#top .all_colors strong{color:#666}#top #wrap_all .main_color h1{color:#006e8c;font-size:30px}#top #wrap_all .all_colors h3{color:#39698d}#top #header_meta{background-color:#333738}#top #header_meta a,#top #header_meta .phone-info{color:#fff}.avia-section.av-3gdzucm-2478d240b7e0cc763d7e3372608918e0{background-color:#198cb5;background-image:unset}#top .av_textblock_section.av-36mhism-c9b578e79f79090bb830f48b2c21a8a6 .avia_textblock{color:#fff}.flex_column.av-3i3smvh-bebb3ad4de7940c744f15965523a224e{-webkit-border-radius:0px;-moz-border-radius:0px;border-radius:0;padding:0}#top .av_textblock_section.av-4ek9yq5-3ea0adbb16e552212c768cf9c767cb02 .avia_textblock{color:#006e8c}.flex_column.av-pfk99-ed9136a888223814f6ef0c3db2e2aab9{-webkit-border-radius:0px;-moz-border-radius:0px;border-radius:0;padding:0}.flex_column.av-mpmxsd-5b626f68a089b20900d5bd2f549b16cf{-webkit-border-radius:0px;-moz-border-radius:0px;border-radius:0;padding:0}html body [data-av_iconfont='entypo-fontello']:before{font-family:'entypo-fontello'}#nf-form-10-cont{margin:-10px}.ninja-forms-noscript-message{background:#f1f1f1;border:4px dashed #ccc;color:#333;display:block;font-size:20px;margin:20px 0;padding:40px;text-align:center}.nf-loading-spinner{width:40px;height:40px;margin:100px auto;background-color:hsla(0,0%,81.6%,.5);border-radius:100%;-webkit-animation:nf-scaleout 1s ease-in-out infinite;animation:nf-scaleout 1s ease-in-out infinite}@-webkit-keyframes nf-scaleout{0%{transform:scale(0)}to{transform:scale(1);opacity:0}}@keyframes nf-scaleout{0%{transform:scale(0)}to{transform:scale(1);opacity:0}}
Although not many people are aware of it, libraries do not get the books they lend ‘for free’ but pay agreed copyright fees to make modern print books available on the basis of the likely number of users a year. We cover this in more detail in why can libraries lend digital copyright material.
In addition, libraries such as the British Library have rare and precious works that have significant value, usually because of age and scarcity, that they would wish to make available digitally, whilst recovering their costs as conservators of rare and valuable works and preventing others from passing on documents for free. Also, there is a very real risk of increased wear and tear or even damage when handling things that are very sensitive and delicate (there is enough acid in human sweat to damage old paper).
There are many arguments over the rights of access to ‘publicly held’ collections. Some works may carry restrictions applied by the donors of items to the library (to make them freely available or to restrict access to scholarly study only). Such limitations may also have political sources or reflect the views at a point in time.
So libraries are expected to act as repositories of a nation’s heritage and to provide and administer large collections including easily damaged works that cannot be replaced. It does not seem unreasonable to allow a library to recover the costs of conservation from the users of the documents as well as from the nation state. Historically it has been considered reasonable for authors to recover income from lending, although now that electronic document copying is trivial the nature, function and role of lending libraries seem increasingly under question by some.
Libraries have controlled the distribution of restricted documents by not allowing them to leave their premises, but that creates serious limitations on facilitating academic study. This poses the question of how, in the digital age, books and documents can be distributed without harming the economic mechanisms needed to pay for their support infrastructure.
And that is why libraries, such as the British Library, need to use Digital Rights Management (DRM) in order to help support the massive costs of being a repository of published works as well as a lending institution.
Implementing DRM over large collections is a challenge. A designer has many different technical and administrative problems to address, including:
The Internet is an interesting and new example of a self-publishing library. The greater part of content creators (authors, painters, photographers and so on) pay to have work published (web site and ISP hosting charges, broadband fees, receiving advertising etc) even if they are not consciously aware of the commercial model they are following. There may be some concerns over the motivation of self-publishers. Libraries with a physical presence still have larger collections of published work that could be available if the economic case can be made. Libraries using DRM technologies to administer their rights may be able to increase their readership and their income as well as recovering necessary costs for storage and conservation.