.expressions{ width:650px; margin:20px auto; height:145px; position:relative;user-select:none;-webkit-user-select:none;}
.expressions li{cursor:pointer; overflow:hidden;margin-right: 10px; width:40px;float:left;height: 80px;padding:20px;}
.expressions em{height:15px;width:40px;font-weight: 700; font-size:16px;text-align:center;background:#fff; display:block;}
.expressions span{width: 40px;height:30px;text-align: center;line-height: 40px;font-size:14px;display: inline-block;}
.expressions div{width:40px;height: 40px;margin-top: 10px;}