/* side */
.side{position:fixed;width:50px;height:auto;right:60px;bottom:70px;z-index:100;}
.side ul li{width:50px;height:50px;float:left;position:relative;list-style-type:none; margin-bottom:5px}
.side ul li .sidebox{position:absolute;width:50px;height:50px;top:0;right:0;transition:all 0.3s;background:#000;opacity:0.5;filter:Alpha(opacity=50);color:#fff;font:14px/50px "微软雅黑";overflow:hidden;-webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    -ms-border-radius: 4px;
    border-radius: 4px;}

.side ul li img{float:left;}