#ll li{
 width: 18%;
      float: left;
      margin: 5px 1%;}
#ll li div{
width: 100%;
    height: 160px;
    text-align: center;    
    line-height: 158px;
    background-color: #f5f5f5;}
#ll li div img{
    max-width: 100%;
    max-height: 160px;
    vertical-align: middle;}