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front_page_effect_collection
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边框按钮

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

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    #draw-border {
      display: flex;
      align-items: center;
      justify-content: center;
      height: 100vh;
    }

    button {
      border: 0;
      background: none;
      text-transform: uppercase;
      color: #4361ee;
      font-weight: bold;
      position: relative;
      outline: none;
      padding: 10px 20px;
      box-sizing: border-box;
    }

    button::before,
    button::after {
      box-sizing: inherit;
      position: absolute;
      content: '';
      border: 2px solid transparent;
      width: 0;
      height: 0;
    }

    button::after {
      bottom: 0;
      right: 0;
    }

    button::before {
      top: 0;
      left: 0;
    }

    button:hover::before,
    button:hover::after {
      width: 100%;
      height: 100%;
    }

    button:hover::before {
      border-top-color: #4361ee;
      border-right-color: #4361ee;
      transition: width 0.3s ease-out, height 0.3s ease-out 0.3s;
    }

    button:hover::after {
      border-bottom-color: #4361ee;
      border-left-color: #4361ee;
      transition: border-color 0s ease-out 0.6s, width 0.3s ease-out 0.6s, height 0.3s ease-out 1s;
    }
  </style>
</head>

<body>
  <div id="draw-border">
    <button>Hover me</button>
  </div>
</body>

</html>