.product img{
max-width:160px; 
max-height:150px; 
vertical-align:middle;  }
.product{
 display: table-cell;  
 vertical-align:middle;  
 /*设置水平居中*/ 
 text-align:center;  
 /* 针对IE的Hack */ 
 *display: block;  
 *font-size: 110px;/*注意 :此如果上下不居中 调整大小*/ 
 *font-family:Arial;/*防止非utf-8引起的hack失效问题，如gbk编码*/  
 width:170px;  
 height:150px; 
 border: 1px solid #eee;   
}
.prolist {
width:170px; height:174px;  float:left; 
margin:12px 8px 0 8px;
}
.prolist
 {
 text-align:center;
 
 }