JSFiddle - React, Tailwind, and code Playground

by imys

HTML

<!-- 小于5行 -->
<div class="cont">
  <p>当地司法所多发省份发生</p>
  <a href="" class="more">显示全部</a>
</div>
<!-- 大于5行 -->
<div class="cont">
  <p>当地司法所多发省份发生</p>
  <p>当地司法所多发省份发生</p>
  <p>当地司法所多发省份发生</p>
  <p>当地司法所多发省份发生</p>
  <p>当地司法所多发省份发生</p>
  <p>当地司法所多发省份发生</p>
  <a href="" class="more">显示全部</a>
</div>

CSS

p {
  margin: 0;
}
.cont {
  position: relative;
  margin-bottom: 20px;
  width: 200px;
  max-height: 150px;
  line-height: 25px;
  background: #fff;
  overflow: hidden;
}

.cont:after {
  content: '...';
  position: absolute;
  top: 100px;
  right: 0;
  background: #fff;
}

.cont:before, .more {
  position: absolute;
  top: 125px;
  left: 0;
}
.cont:before {
  content: '';
  width: 100%;
  height: 25px;
  background: #fff;
  z-index: 1;
}
.more {
  z-index: 2;
}