console 命令行工具 X clear

console

<body>
  <div>
    Test (23.5 * 0.8 = 18.75px)
      <div>
        Test (23.5 * 0.8 = 18.75px)
          <div>
            Test (23.5 * 0.8 = 18.75px)
              <div>
                Test (23.5 * 0.8 = 18.75px)
              </div>
          </div>
     </div>
  </div>
</body>

html {
  font-size: 23.5px;
}
body {
  text-align: center;
  background: #ff5722;
}

div {
  font-size: .8rem;
  color: #64ffda;
  font-weight: bold;
  padding: 2em;
}