html, body {width: 100%;height: 100%;overflow:hidden;}
.platformContainer {text-align: center;height:100%;width:100%;}
.bgPlat{height:100%;width:100%;-webkit-transform: scale(1.8);-moz-transform: scale(1.8);-ms-transform: scale(1.8);-o-transform: scale(1.8);transform: scale(1.8);-webkit-transition: 5s;-o-transition: 5s;transition: 5s;}
.platformbg{-webkit-transform: scale(1) ;-moz-transform: scale(1);-ms-transform: scale(1);-o-transform: scale(1);transform: scale(1);}
.explained {width: 928px;height: 496px;position: absolute;left:50%;margin:-248px 0px 0px -464px;top: 50%;background: url(../../img/platBg2.png) no-repeat;}
.downloadBtn {display: inline-block;width: 200px;height: 45px;line-height: 45px;position: absolute;font-size: 16px;bottom: 44px;left: 50%;margin-left: -100px;color: #fff;border-radius: 4px;background: url(../../img/btnIcon.png) 0 -94px;}
.downloadBtn:hover{  background-position: 0 -139px;}
.toggleBtn {background: url(../../img/btnIcon.png) 0 0px;}
.footer{position: absolute;bottom:0;}