更改背景图像的位置 - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <style>
    div {
      background-image: url("/examples/img_tree.png");
      background-repeat: no-repeat;
      width: 400px;
      height: 400px;
      border: 1px solid #000000;
    }
  </style>
  <script>
    function displayResult() {
      document.getElementById("div1").style.backgroundPosition = "center bottom";
    }
  </script>
</head>
<body>

  <button type="button" onclick="displayResult()">修改背景图像位置</button>
  <br>
  <div id="div1">
  </div>

</body>
</html>
        