3列 高度自适应 文字上下左右居中

  <div class="pop-PayMod marT15 bor_t1">
  	<div class="row webkit-box">
  		<div class="col-xs-5 clearPadRight center">
			<p>卡费：¥ <label class="purpleColor">20</label></p>
			<p>邮费：¥ <label class="purpleColor">10</label></p>
		</div>
  		<div class="col-xs-4 clearPad centerMidden" >总计：¥ <label class="purpleColor">20.00</label></div>
  		<div class="col-xs-3 clearPadLeft purpleBg whiteColor centerMidden" >支付</div>
  	</div>	
  </div>