html5 +css3 点击后水波纹扩散效果兼容移动端

<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="Content-Type"
        content="text/html;charset=utf-8"/>
  <meta name="viewport"
        content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
  <title>html5+ js +css3 点击后水波纹扩散效果 兼容移动端-幸凡学习网</title>
  <style> body {
    margin: 0;
    padding: 0;
  }

  .center {
    text-align: center
  }

  .btn {
    position: relative;
    width: 13em;
    height: 3em;
    margin: 2em;
    border: none;
    outline: none;
    letter-spacing: .2em;
    font-weight: bold;
    background: #999;
    cursor: pointer;
    overflow: hidden;
    user-select: none;
    border-radius: 2px;
    color: #fff;
  }

  button:nth-child(2) {
    background: #4285f4;
  }

  button:nth-child(3) {
    background: #00bad2;
  }

  button:nth-child(4) {
    background: #ff8a80;
  }

  button:nth-child(5) {
    background: #ffae00;
  }

  button:nth-child(6) {
    background: #aec156;
  }

  button:nth-child(7) {
    background: #a060a8;
  }

  button:nth-child(8) {
    background: #a78660;
  }

  button:nth-child(9) {
    background: #5da065;
  }

  button:nth-child(10) {
    background: #5e6b9a;
  }

  button:nth-child(11) {
    background: #9a5e5e;
  }

  button:nth-child(12) {
    background: #666;
  }

  .ripple {
    position: absolute;
    background: rgba(0, 0, 0, .15);
    border-radius: 100%;
    transform: scale(0);
    pointer-events: none;
  }

  .ripple.show {
    animation: ripple .75s ease-out;
  }

  @keyframes ripple {
    to {
      transform: scale(2);
      opacity: 0;
    }
  } </style>
</head>
<body><h1
  class="center">html5 +css3 点击后水波纹扩散效果 兼容移动端</h1>
<div class="main
center">
  <button class="btn">BUTTON</button>
  <button
    class="btn">BUTTON
  </button>
  <button class="btn">BUTTON</button>
  <button
    class="btn">BUTTON
  </button>
  <button class="btn">BUTTON</button>
  <button
    class="btn">BUTTON
  </button>
  <button class="btn">BUTTON</button>
  <button
    class="btn">BUTTON
  </button>
  <button class="btn">BUTTON</button>
  <button
    class="btn">BUTTON
  </button>
  <button class="btn">BUTTON</button>
  <button
    class="btn">BUTTON
  </button>
</div>
<script>
  var addRippleEffect =
    function (e) {
      var target = e.target;
      if (target.className.toLowerCase()
        !== 'btn') {
        return false;
      }
      var rect = target.getBoundingClientRect();
      var
        ripple = target.querySelector('.ripple');
      if (!ripple) {
        ripple =
          document.createElement('span');
        ripple.className = 'ripple'
        ripple.style.height = ripple.style.width = Math.max(rect.width,
          rect.height) + 'px'
        target.appendChild(ripple);
      }
      ripple.classList.remove('show');
      var top = e.pageY - rect.top -
        ripple.offsetHeight / 2 - document.body.scrollTop;
      var left = e.pageX -
        rect.left - ripple.offsetWidth / 2 - document.body.scrollLeft;
      ripple.style.top = top + 'px'
      ripple.style.left = left + 'px'
      ripple.classList.add('show');
      return false;
    }
  document.addEventListener('click', addRippleEffect, false); </script>
</body>
</html>
View Code
posted on 2018-11-21 19:53 Newbie_小白阅读(951) 评论(0) 编辑收藏举报