加快过渡效果 - 在线编辑器

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <style>
    #myDIV {
      border: 1px solid black;
      background-color: lightblue;
      width: 270px;
      height: 200px;
      overflow: auto;
      transition: all 5s;
      -webkit-transition: all 5s;
      /* 针对 Safari */
    }

    #myDIV:hover {
      background-color: coral;
      width: 570px;
      height: 500px;
      padding: 100px;
      border-radius: 50px;
    }
  </style>
</head>
<body>

  <p>把鼠标指针悬停在 DIV 元素上，它将改变颜色和尺寸大小！</p>
  <p>点击“尝试一下”按钮，再次把鼠标指针悬停在 DIV 元素上。改变将进行得更快一些！</p>
  <button onclick="myFunction()">尝试一下</button>
  <div id="myDIV">
    <h1>myDIV</h1>
  </div>
  <script>
    function myFunction() {
      document.getElementById("myDIV").style.transitionDuration = "1s";
      document.getElementById("myDIV").style.WebkitTransitionDuration = "1s";
    }
  </script>
  <p>Internet Explorer 10、Firefox、Opera 和 Chrome 支持 transitionDuration 属性。</p>
  <p>Safari 支持另一个可替代该属性的属性，即 WebkitTransitionDuration 属性。</p>

</body>
</html>
​x
 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <style>
    #myDIV {
      border: 1px solid black;
      background-color: lightblue;
      width: 270px;
      height: 200px;
      overflow: auto;
      transition: all 5s;
      -webkit-transition: all 5s;
      /* 针对 Safari */
    }
​
    #myDIV:hover {
      background-color: coral;
      width: 570px;
      height: 500px;
      padding: 100px;
      border-radius: 50px;
    }