在DIV里面让图片居中

.content.itemDiv{ display: table-cell;width: 171px;height: 133px;text-align: center; vertical-align: middle; background:url(../images/itembg2.png) no-repeat center;padding: 11px;}

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<div class="content">                     <div class="itemDiv">                         <img src="images/item1.png">                     </div>                     <div class="itemDiv">                         <img src="images/item4.png">                     </div>                     <div class="itemDiv">                         <img src="images/item2.png">                     </div>                     <div class="itemDiv">                         <img src="images/item3.png">                     </div>                     <div class="itemDiv">                         <img src="images/item5.png">                     </div>      </div>