console 命令行工具 X clear
console
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }

    .pic {
      padding-top: 60%;
      position: relative;
      background-color: pink;
    }

    img {
      top: 0;
      left: 0;
      right: 0;
      position: absolute;
      object-fit: contain;
      width: 100%;
      height: 100%;
    }
  </style>
</head>

<body>
  <div class='box'>
    <div class="pic">
      <img src="//i.loli.net/2021/11/05/DOromEgG51en8vw.jpg" alt="">
    </div>

  </div>
</body>

</html>