需要用到的图标

实现原理

关键属性是 text-overflow: clip;，表示直接截断文本。我们经常用这个属性的另一个值 text-overflow: ellipsis; 来做省略表示。
先平铺5个空心的图标
再层叠5个实心图标，控制实心图标的宽度来达到截断效果，结合 overflow:hidden 达到类似进度条的效果
优点是因为是字符，颜色大小很容易控制，而且不会影响其他内容
实心图标层的宽度需要根据实际总宽度按比例计算。比如总宽度是字体大小24px的情况下总宽度120，评分4.5（总分5分）.实际宽度为 4.5*120/5

代码

<div style="position:relative; font-size: 20px;color:#985f0d;"><div><span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span><span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span><span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span><span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span><span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span></div><div style="position:absolute; left:0;top:0;width: 73px; overflow: hidden;text-overflow: clip;white-space: nowrap;"><span class="glyphicon glyphicon-heart" aria-hidden="true"></span><span class="glyphicon glyphicon-heart" aria-hidden="true"></span><span class="glyphicon glyphicon-heart" aria-hidden="true"></span><span class="glyphicon glyphicon-heart" aria-hidden="true"></span><span class="glyphicon glyphicon-heart" aria-hidden="true"></span></div>
</div>

效果

替换成任意字符

<div style="background: #CECECE; padding:50px;">    <div style="position:relative; font-size: 20px; display: inline-block;"><div style="font-weight: bold;color:#FFFFFF;">必须五星好评</div><div style="position:absolute; font-weight: bold; left:0;top:0;width: 73%; overflow: hidden;text-overflow: clip;white-space: nowrap;color:orangered;">必须五星好评</div></div>
</div>