.ll{
width: 30%;
    float: left;
    margin: 10px 1%;
    border: 1px #f5f5f5 solid;}
.ll div{
    width: 100%;
    height: 170px;
    text-align: center;    
    line-height: 170px;}
   

.ll div img{
    max-width: 100%;
    max-height: 170px;
    vertical-align: middle;}