css
.arrow-right {
display: inline-block;
width: .15rem;
height: .15rem;
border-top: .01rem solid #666;
border-right: .01rem solid #666;
transform: rotate(45deg);
}
html:
<li id="couponRow">
<label>优惠券</label>
<div class="input-text yhq-text" data-nums="5">
<input id="couponId" type="hidden" name="couponId" value="">
<span id="youhuiquan">0张可用</span> <span class="arrow-right"></span>
</div>
</li>