#returnTop{_display:none; position:fixed; _position:absolute; z-index:999; right:15px; bottom:-210px; _bottom:auto; width:50px; height:60px; text-indent:-999px; overflow:hidden; background-image:url(images/icon.png); _background-image:url(images/icon.png); background-repeat:no-repeat; background-position:0 0; transition:bottom 0.9s; -webkit-transition:bottom 0.9s; -moz-transition:bottom 0.9s; -o-transition:bottom 0.9s;}
#returnTop:hover{background-position:0 -60px;}