css实现文本两端对齐

.active-lists .nowprice{white-space:nowrap;}

.active-lists .nowprice .label{background:#ff6600;color:#fff;text-align:center;border-radius:1em;}

.active-lists .nowprice .points{color:#ff6600;}

<div class="info flex_1">

          <h2>必胜客 50元代金券</h2>

          <p class="oldprice"><label class="label">原价</label> 50元</p>

          <p class="nowprice"><label class="label">首单价</label> <span class="points">200积分</span>+20元 </p>

</div>

第二种方案：

.oldprice .label{text-decoration: line-through;overflow:hidden;text-align: justify;text-align-last:justify;text-justify:inter-ideograph(IE);-moz-text-align-last:justify;//兼容FF低版本}

.oldprice  .label > span{display:inline-block;padding-left:100%;}