其实这个功能不是刚需，但可以根据自己的使用情况来使用，我觉得很不错，配色方面可以根据自己网站的风格进行修改CSS调整，主要动态效果不错，这里做个分享和备用。代码我会贴出来，为了避免后期代码转义，我会单独发一份附件在页尾。先看个效果图：

代码分两部分，CSS部分和 HTML部分，我分开贴出来。

CSS代码：

    .tp-down-box{
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
    }
    .down-btn {
      letter-spacing: 0.1em;
      cursor: pointer;
      font-size: 14px;
      font-weight: 700;
      line-height: 45px;
      width: 23%;
      max-width: 160px;
      text-decoration: none;
      text-transform: uppercase;
      margin: 5px;
    }
    .down-btn:hover {
      text-decoration: none;
    }
    .tp-down-btn {
      --uismLinkDisplay: var(--smLinkDisplay, inline-flex);
      display: var(--uismLinkDisplay);
      color: #000;
      border: 2px solid #000;
      border-radius: 5px;
      position: relative;
      transition-duration: 0.4s;
      overflow: hidden;
      text-align: center;
    }
    .tp-down-btn::before,
    .tp-down-btn span{
      margin: 0 auto;
      transition-timing-function: cubic-bezier(0.86, 0, 0.07, 1);
      transition-duration: 0.4s;
    }
    .tp-down-btn:hover{
      background-color: #000;
    }
    .tp-down-btn:hover span{
      -webkit-transform: translateY(-400%) scale(-0.1,20);
      transform: translateY(-400%) scale(-0.1,20);
    }
    .tp-down-btn::before{
      content: attr(data-sm-link-text);
      color: #FFF;
      position: absolute;
      left: 0;
      right: 0;
      margin: auto;
      -webkit-transform: translateY(500%) scale(-0.1,20);
      transform: translateY(500%) scale(-0.1,20);
    }
    .tp-down-btn:hover::before{
        letter-spacing: 0.05em;
        -webkit-transform: translateY(0) scale(1,1);
        transform: translateY(0) scale(1,1);
    }
    @media screen and (max-width: 1198px){
      .down-btn{
          width: 45%;
      }
    }

HTML代码：

<div class="tp-down-box">
<a href="#" class="down-btn tp-down-btn" data-sm-link-text="点击下载" target="_blank" rel="noopener noreferrer"><span>蓝奏网盘</span></a>
<a href="#" class="down-btn tp-down-btn" data-sm-link-text="点击下载" target="_blank" rel="noopener noreferrer"><span>天翼网盘</span></a>
<a href="#" class="down-btn tp-down-btn" data-sm-link-text="点击下载" target="_blank" rel="noopener noreferrer"><span>百度网盘</span></a>
<a href="#" class="down-btn tp-down-btn" data-sm-link-text="点击下载" target="_blank" rel="noopener noreferrer"><span>八点半博客</span></a>
</div>

代码文件：