console 命令行工具 X clear
console
<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <title>-</title>
    <meta content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=0" name="viewport">
    <meta name="renderer" content="webkit">
    <style>
      .css-w {
        width: 300px;
        height: 600px;
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        margin: auto;
      }
      .doodz {
        background: #fff;
        padding: 10px;
        border-radius: 5px;
      }
      
    </style>
  </head>

  <body>
    <div class="css-w">
      <css-doodle class="doodz" click-to-update>
        :doodle {
          grid-gap: 1px;
          background-color: #f5f5f5;
          @grid: 2x20 / 100% 100%;
        }
        :after {
          content: @rep15(@p([0-9]));
          color: #fff;
          font-family: Consolas;
        }
        @y1 {
          @shape: triangle;
        }
        background-color: #09e;
        transition: .5s;

      </css-doodle>
    </div>
    
    <script src="https://cdn.jsdelivr.net/npm/css-doodle@0.13.4/css-doodle.min.js"></script>
  </body>
</html>