哇塞！太美了，BAT经典一键换肤案例，怎么点…怎么点...都好看~

作业：一键换肤案例

案例效果：

一键换肤

案例源码：

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>作业: 一键换肤</title>
    <style>
      .container {
        width: 300px;
        display: grid;
        /* 网格三列 */
        grid-template-columns: repeat(3, 1fr);
        column-gap: 10px;
      }
      .container > img {
        width: 100%;
        border: 3px solid #fff;
        opacity: 0.6;
      }
      .container > img:active {
        opacity: 1;
      }
      .container > img:hover {
        opacity: 1;
        cursor: pointer;
        width: 105%;
      }
      body {
        background-image: url(static/images/1.jpg);
        background-repeat: no-repeat;
        background-size: cover;
      }
    </style>
  </head>
  <body>
    <div class="container">
      <img src="static/images/1.jpg" alt="" />
      <img src="static/images/2.jpg" alt="" />
      <img src="static/images/3.jpg" alt="" />
    </div>
    <script>
      document
        .querySelector(".container")
        .addEventListener(
          "click",
          (ev) =>
            (document.body.style.backgroundImage = "url(" + ev.target.src + ")")
        );
    </script>
  </body>
</html>

案例效果：

案例源码：

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