.landing-page header{background:#000 url('/Content/img/photo/header-bg1.jpg') 50% 50% no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover}.landing-page section.viewer-section{background:#000 url('/Content/img/photo/viewer-bg4.jpg') 50% 50% no-repeat;-webkit-background-size:cover;-moz-background-size:cover;-o-background-size:cover;background-size:cover}.landing-page section.viewer-section .discover{position:absolute;bottom:0;background:#000;width:100%;color:#fff;text-align:center;padding:15px 0}.landing-page section.image-section.image-usecases{background-image:url('/Content/img/photo/viewer-bg4.jpg')}