html,body{width:100%;height:100%;overflow:hidden;margin:0}iframe{width:100%;height:100%;border:0}.close-window-btn{position:absolute;z-index:100;top:58px;left:20px;font-size:20px;background-color:rgba(0,180,174,0.85);color:rgba(255,255,255,0.6);padding:10px}.close-window-btn:hover{background-color:rgba(0,180,174,0.95);color:white}