a#move_up { position: fixed; overflow: hidden; top: 0; left:0; display: none; width: 300px; height: 500px; text-align: center; font: 12px Verdana; text-decoration: none; color: #2b587a; background: #DAE2E8; padding-top:17px; opacity:0. 8; filter: alpha(opacity=80); } a#move_up:hover { color: #fff; background: #597da3; }