.mode-share a{background:url(http://p1.qhimg.com/t01beff0b796ae28c97.png) no-repeat;display:inline-block;height:0;margin:0 5px;overflow:hidden;padding-top:25px;vertical-align:middle;width:25px}.mode-share .tweibo{background-position:-30px 0}.mode-share .qzone{background-position:-60px 0}.mode-share .renren{background-position:-90px 0}.mode-share .douban{background-position:-120px 0}