Css 属性 clip-path

示例

代码

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <style>
    body {
      margin: 10px;
    }

    .box,
    .demo,
    .demo2 {
      display: inline-block;
      width: 100px;
      height: 100px;
      background-color: skyblue;

      transition: .5s;
    }

    .demo {
      clip-path: polygon(50% 0, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
      animation: clip 1s linear infinite;
    }

    @keyframes clip {
      0% {
        clip-path: polygon(50% 0, 100% 38%, 82% 100%, 18% 100%, 0 38%);
      }

      25% {
        clip-path: polygon(75% 0, 100% 69%, 65.5% 100%, 9% 100%, 0 19%);
      }

      50% {
        clip-path: polygon(100% 0, 100% 100%, 50% 100%, 0 100%, 0 0);
      }

      75% {
        clip-path: polygon(100% 19%, 91% 100%, 34% 100%, 0 69%, 25% 0);
      }

      100% {
        clip-path: polygon(100% 38%, 82% 100%, 18% 100%, 0 38%, 50% 0);
      }
    }

    .demo2 {
      clip-path: polygon(20% 0, 80% 0, 100% 50%, 80% 100%, 20% 100%, 0 50%);
      animation: clip2 1s linear infinite;
    }

    @keyframes clip2 {
      0% {
        clip-path: polygon(20% 0, 80% 0, 100% 50%, 80% 100%, 20% 100%, 0 50%);
      }

      25% {
        clip-path: polygon(35% 0, 90% 0, 100% 75%, 65% 100%, 10% 100%, 0 25%);
      }

      50% {
        clip-path: polygon(50% 0, 100% 0, 100% 100%, 50% 100%, 0 100%, 0 0);
      }

      75% {
        clip-path: polygon(65% 0, 100% 25%, 90% 100%, 35% 100%, 0 75%, 10% 0);
      }

      100% {
        clip-path: polygon(80% 0, 100% 50%, 80% 100%, 20% 100%, 0 50%, 20% 0);
      }
    }
  </style>
</head>

<body>
  <div class="box" style="clip-path: circle(40%);"></div>
  <p>clip-path: circle(50%);</p>
  <hr>
  <div class="box" style="clip-path: ellipse(25% 50% at 25% 50%);"></div>
  <p>clip-path: ellipse(25% 50% at 25% 50%);</p>
  <hr>
  <div class="box" style="clip-path: path('M 0 80 L 0,75 A 5,5 0,0,1 100,50 L 80 80 z');"></div>
  <p>clip-path: path('M 0 80 L 0,75 A 5,5 0,0,1 100,50 L 80 80 z');</p>
  <hr>
  <div class="demo"></div>
  <hr>
  <div class="demo2"></div>
</body>

</html>