HTML DOM 样式 backgroundAttachment 属性

htmlweb developmentfront end technology更新于 2025/10/2 6:04:17

backgroundAttachment 属性用于设置或获取背景图像是否应相对于页面内容滚动。

语法

以下是语法 −

设置 backgroundAttachment 属性 −

object.style.backgroundAttachment = "scroll|fixed|local|initial|inherit"

值

以下是值 −

序号	值 &说明
1	Scroll 这是默认值，使背景随图片滚动。
2	Fixed 这使背景相对于视口固定。
3	Local 使背景随元素内容滚动。
4	Initial 将此属性设置为初始值。
5	inherit 继承父级属性值。

示例

我们来看 backgroundAttachment 属性的示例 −

<!DOCTYPE html>
<html>
<head>
<style>
   body {
      background-image: url("https://www.cainiaomax.com/artificial_intelligence_with_python/images/artificialintelligence-with-python-mini-logo.jpg");
      background-repeat: no-repeat;
      background-attachment: fixed;
      background-position: top;
   }
   article {
      color: white;
      background: rgba(0, 0, 0, 0.4);
   }
</style>
<script>
   function changeAttachment(){
      document.getElementById("BODY1").style.backgroundAttachment="local";
      document.getElementById("Sample").innerHTML="The background will now scroll along with the page.";
   }
</script>
</head>
<body id="BODY1">
<h2>This is demo heading</h2>
<p>Curabitur tincidunt elit libero, sed ullamcorper urna ullamcorper ut.
Nulla scelerisque, quam in efficitur porta, nisi turpis blandit odio, vitae ultricies lectus ex vel felis.
Proin lectus nulla, cursus vitae massa ac, mollis gravida orci. Cras euismod imperdiet elit, aliquet placerat purus bibendum vel.
Nullam vehicula urna non ullamcorper congue. Etiam volutpat gravida tempus. Fusce non volutpat diam.
Nullam sagittis condimentum dui, a pharetra mi commodo nec. Cras vulputate hendrerit ornare.
Sed id ligula sit amet arcu dapibus molestie nec at risus.
Aliquam gravida, dolor non vehicula lobortis, augue erat gravida metus, id eleifend ante risus vel turpis.
Nunc fermentum scelerisque nulla, non gravida dui consequat malesuada. Pellentesque mollis scelerisque quam ac efficitur.
Nunc ante velit, efficitur vitae dignissim semper, maximus in mi.</p>
<ul>
<li>One</li>
<li>Two</li>
<li>Three</li>
<li>Four</li>
</ul>
<p> Vivamus eget nisi eu libero viverra vestibulum. Nulla luctus ultrices metus, nec dapibus magna dignissim eget. Ut sed posuere erat.</p>
<p>Nunc ante velit, efficitur vitae dignissim semper, maximus in mi.</p>
<p>Pellentesque vitae est eget est tempus pretium.
Phasellus semper erat efficitur justo tristique sollicitudin.
Morbi mi eros, aliquet ac gravida ac, tempor et ante. </p>
<p>Aenean non justo non lorem accumsan fermentum efficitur at quam.
Morbi rhoncus lacus sed est luctus, a hendrerit est ullamcorper.
Etiam quis nisl non sem fringilla ullamcorper. Interdum et malesuada fames ac ante ipsum primis in faucibus.
Donec ac malesuada turpis. Donec dapibus diam metus, nec blandit tellus vulputate quis.</p>
<p>Donec blandit tincidunt ante, sed blandit massa volutpat eu. Mauris ac porta lectus, et vulputate ante.</p>
<p>Click the below button to change the above div backface visibility value</p>
<button onclick="changeAttachment()">CHANGE ATTACHMENT</button>
<p id="Sample"></p>
</body>
</html>