.text-block{width:250px;margin:50px}#go-top{position:fixed;font-family:sans-serif;line-height:30px;text-align:center;color:#fff;bottom:25px;right:10px;cursor:pointer;display:none;width:40px;height:38px;background:silver;border-radius:5px;margin-bottom:30px;opacity:.7;filter: alpha(Opacity=70)}#go-top:hover{background:#1e73be}