เสร็จแล้ว

✨ WANATCHPORN SILARUAM

<html>
  <head>
    <title>Let's Start
    </title>
    <style>
      body{
        margin:3em;
      }
      .cover{
        width:300px;
        margin:auto;
        font-size: 0;
        transform-style: preserve-3d;
/*         transform:; */
        transition: .3s;
        cursor: pointer;
        position:relative;
        animation: float 2s ease infinite
      }
      .cover img{
        width:100%;
      }
      .cover:hover{
        animation: turnlr 4s infinite;
      }
      .paper-1 {
        background: linear-gradient(to right,#eee,#ddd);
        right: -20px;
        top: 0;
        width: 20px;
        height: 100%;
        transform:rotateY(90deg);
        transform-origin: 0% 0%;
        border-right: 1px solid #999;
      }
      .paper-2 {
        background: linear-gradient(to bottom,#eee,#ddd);
        left: 0;
        bottom: -20px;
        width: 100%;
        height: 20px;
        transform:rotateX(-90deg);
        transform-origin :0% 0%;
        border-bottom: 1px solid #999;
      }
      .paper-3 {
        background: linear-gradient(to left,hsl(39, 63%, 62%),hsl(39, 63%, 50%));
        left: 0;
        top: 0;
        width: 20px;
        height: 100%;
        transform:rotateY(90deg);
        transform-origin :0% 0%;
        border-bottom: 1px solid #999;
      }
      .paper {
        position: absolute;
        box-sizing: border-box;
        z-index: 50;
      }
      @keyframes turnlr {
          30%{transform:rotateY(15deg) translateY(10px)}
          60%{transform:rotateY(-15deg) rotateX(15deg)}
          90%{transform:rotateY(-30deg)}
      }
      @keyframes float{
          50%{transform:translateY(10px)}
      }
    </style>
  </head>
  <body>
    <div class="cover">
      <img src="https://content.shopback.com/th/wp-content/uploads/2019/05/01185252/pic9_phralan.in_.th_.jpg">
      <div class="paper paper-1">
      </div>
      <div class="paper paper-2">
      </div>
      <div class="paper paper-3">
    </div>
    </div>
  </body>
</html>