HTML DOM scrollHeight 属性

htmlweb developmentfront end technology更新于 2025/8/29 6:04:17

HTML DOM scrollHeight 属性返回 HTML 文档中元素的整个高度(内容 + 填充)，以像素为单位。

语法

以下是语法 −

element.scrollHeight

示例

让我们看一个 scrollHeight 属性的示例 −

<!DOCTYPE html>
<html>
<head>
<style>
   html{
      height:100%;
   }
   body{
      text-align:center;
      color:#fff;
      background: #ff7f5094;
      height:100%;
   }
   p{
      font-weight:700;
      font-size:1.2rem;
      height:80px;
      border:1px solid #fff;
      overflow:auto;
      width:250px;
      margin:20px auto;
   }
   .btn{
      background:#0197F6;
      border:none;
      height:2rem;
      border-radius:2px;
      width:35%;
      margin:2rem auto;
      display:block;
      color:#fff;
      outline:none;
      cursor:pointer;
   }
   .show{
      font-size:1.5rem;
   }
</style>
</head>
<body>
<h1>DOM scrollHeight/scrollWidth Property Demo</h1>
<p>Hi!I'm a para element in HTML with some dummy text.
Hi!I'm a para element in HTML with some dummy text.
Hi!I'm a para element in HTML with some dummy text.
Hi!I'm a para element in HTML with some dummy text.</p>
<button onclick="getHW()" class="btn">Get paragraph height & width</button>
<div class="show"></div>
<script>
   function getHW() {
      var para = document.querySelector('p');
      document.querySelector(".show").innerHTML="<div>Para Height = "+para.scrollHeight+" px</div><div>Para Width = "+ para.scrollWidth+" px</div>";
   }
</script>
</body>
</html>