.scroll-up{background:url('../images/up.png') no-repeat center center;width:43px!important;height:43px!important;position:fixed;_position:absolute;opacity:.6;filter:Alpha(opacity=60);cursor:pointer;display:none;border-radius:5px;-webkit-transition-property:background-color,opacity;-webkit-transition-duration:1s;-webkit-transition-timing-function:ease;-moz-transition-property:background-color;-moz-transition-duration:1s;-moz-transition-timing-function:ease;}.scroll-up:hover{opacity:.8;}