html,body{margin:0;padding:0;background-attachment:fixed;background-position:50% 50%;background-size:cover;}a{text-decoration:underline;}a:hover{text-decoration:none;}.bg-red{background-image:url(../img/bg-red.html);}.bg-orange{background-image:url(../img/bg-orange.jpg);}.bg-yellow{background-image:url(../img/bg-yellow.html);}.bg-green{background-image:url(../img/bg-green.html);}.bg-cyan{background-image:url(../img/bg-cyan.html);}.bg-blue{background-image:url(../img/bg-blue.html);}.bg-purple{background-image:url(../img/bg-purple.jpg);}.bg-pink{background-image:url(../img/bg-pink.html);}.bg-black{background-image:url(../img/bg-black.html);}.body{max-width:600px;margin:0 auto;padding:40px;box-sizing:content-box;-moz-box-sizing:content-box;}.body-s{max-width:400px;}.modal{padding:25px 30px;background:rgba(255,255,255,0.9);font:13px/1.55 'Open Sans',Helvetica,Arial,sans-serif;color:#666;}.modal a{color:#2da5da;}@media screen and (max-width: 600px) {.body{padding:20px;}}