改变 iframe的高度与宽度 - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <script>
    function changeSize() {
      document.getElementById("myframe").height = "300";
      document.getElementById("myframe").width = "300";
    }
  </script>
</head>
<body>

  <iframe id="myframe" src="https://www.mifengjc.com" height="200" width="200">
<p>你的浏览器不支持iframes。</p>
</iframe>
  <br><br>
  <input type="button" onclick="changeSize()" value="修改大小">

</body>
</html>
        