css那点事儿

之前看到的觉得很有意思的a标签的css样式
效果如下
代码如下：
<style>
    :root {
      --link-background-color: 189, 195, 199;
      --link-background-opacity: 0.5;
      --link-background-opacity-hover: 0.7;
      --accent-color: #34495e;
    }

    a {
      text-decoration: none;
      color: var(--accent-color);

    }

    a.link {
      box-shadow: 0px -2px 0px rgba(var(--link-background-color),
          var(--link-background-opacity)) inset;
      transition: all 0.3s ease;
    }

    a.link:hover {
      box-shadow: 0px -10px 0px rgba(var(--link-background-color),
          var(--link-background-opacity-hover)) inset;
    }

    del {
      background-color: #ddd;
      border-radius: 2px;
      color: rgba(0, 0, 0, 0);
      text-decoration: none;
      cursor: default;
      /* -webkit-transition: color .15s ease, background-color .15s ease; */
      /* -o-transition: color .15s ease, background-color .15s ease; */
      transition: color .15s ease, background-color .15s ease
    }

    del:hover {
      color: #383838;
      background-color: rgba(0, 0, 0, 0)
    }
  </style>
</head>

<body>
  <a class="link" rel="noopener" href="https://blog.jimmycai.com/p/new-theme-stack/">我有一壶酒，足以慰平生</a>
  <del> 一颗草莓头子 </del>
</body>