需求如下：

    前端需要显示矩形的缩略图，接口返回的图片尺寸大小不一，宽高不相等，需要前端来处理并显示成正方形，类似微信朋友圈图片的效果，等比例正方形显示在列表中，让图片根据宽高来自适应显示在页面上。那么使用纯css该如何实现不定宽高的图片居中裁剪呢？

mate标签：

<meta name="viewport" content="width=device-width,user-scalable=no,target-densitydpi=device-dpi" />

css代码：

<style type="text/css">  
    .figure-list{  
      margin: 0;  
      padding: 0;  
    }  
    .figure-list:after{  
      content: "";  
      display: block;  
      clear: both;  
      height: 0;  
      overflow: hidden;  
      visibility: hidden;  
    }  
    .figure-list li{  
      list-style: none;  
      float: left;  
      width: 23.5%;  
      margin: 0 2% 2% 0;  
    }  
    .figure-list figure{  
        border: 1px solid #000;  
      position: relative;  
      width: 100%;  
      height: 0;  
      overflow: hidden;  
      margin: 0;  
      padding-bottom: 100%; /* 关键就在这里 */  
      background-position: center;  
      background-repeat: no-repeat;  
      background-size: cover;  
    }  
    .figure-list figure a{  
      display: block;  
      position: absolute;  
      width: 100%;  
      top: 0;  
      bottom: 0;  
    }  
</style>

html代码：

<ul class="figure-list">  
  <li>  
    <figure style="background-image:url(src/fly63前端网.jpg)">  
      <a href="#"></a>  
    </figure>  
  </li>  
  <li>  
    <figure style="background-image:url(src/fly63前端.jpg)">  
      <a href="#"></a>  
    </figure>  
  </li>  
   <li>  
    <figure style="background-image:url(src/fly63前.png)">  
      <a href="#"></a>  
    </figure>  
  </li>  
  <li>  
    <figure style="background-image:url(src/fly63.jpg)">  
      <a href="#"></a>  
    </figure>  
  </li>  
  
   <li>  
    <figure style="background-image:url(src/fly6.jpg)">  
      <a href="#"></a>  
    </figure>  
  </li>  
  <li>  
    <figure style="background-image:url(src/fly.jpg)">  
      <a href="#"></a>  
    </figure>  
  </li>  
</ul>

完结~~~~~~~~~

链接: https://fly63.com/article/detial/837