#scrollTop div { left: 0; margin: 0; overflow: hidden; padding: 0; position: absolute; top: 0; width: 149px; } #scrollTop .level-2 { background: url("up.png") no-repeat scroll -149px 0 transparent; display: none; height: 250px; opacity: 0; z-index: 1; } #scrollTop .level-3 { background: none repeat scroll 0 0 transparent; cursor: pointer; display: block; height: 150px; z-index: 2; } #scrollTop { background: url("up.png") no-repeat scroll 0 0 transparent; cursor: default; display: block; height: 250px; margin: -125px 0 0; overflow: hidden; padding: 0; position: fixed; right: -35px; top: 80%; width: 149px; z-index: 11; }