省略号后跟详情/展开

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <style>
      * {
        box-sizing: content-box;
      }

      .content {
        position: relative;
        border: 1px solid red;
        width: 500px;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        overflow: hidden;
        line-height: 24px;
        animation: widthanimate 5s ease 0s  infinite;
      }
      @keyframes widthanimate {
        0% {
         width: 500px;
        }
       
        50% {
          width: 800px;
        }
      
        100% {
          width: 500px;
        }
      }

      .clamp::before {
        content: "";
        float: right;
        width: 1px;
        height: 24px;
        background-color: white;
      }

      .clamp::after {
        content: "";
        height: 20px;
        background-color: white;
        width: 100%;
        position: absolute;
      }

      .first {
        /* width: 100px; */
        color: red;
        float: right;
        clear: both;
        text-align: center;
      }

      .left{
        float: left;
        height: 20px;
      }
    </style>
  </head>

  <body>
    <div id="el">
      <div class="content">
        <div class="clamp">
          <span class="first"> 详情 </span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
          <span>肺片毛玻璃</span>
        </div>
      </div>
    </div>
  </body>
</html>

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# 省略号后跟详情/展开

省略号后跟详情/展开