CSS兼容实现各浏览器的透明度

最新推荐文章于 2022-05-07 14:30:35 发布

转载最新推荐文章于 2022-05-07 14:30:35 发布 · 942 阅读

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本文介绍了如何使用CSS在不同浏览器中实现元素的透明效果。包括当前CSS标准的opacity属性，以及针对IE、旧版Mozilla和Safari浏览器的特定属性。

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WEB开发中透明度经常使用到，久不用又忘了，今天网上找了一下，记录下来，方便以后直接看，懒人计划

.transparent_class {  /* 兼容各浏览器实现透明度 */
      filter:alpha(opacity=50);  
      -moz-opacity:0.5;  
      -khtml-opacity: 0.5;  
      opacity: 0.5;  
}

UPDATE: I wanted to pull this post out of the archives and update it a bit because it there seems to be a good amount of interest in this subject.
Here is what each of those CSS properties is for:

opacity: 0.5; This is the “most important” one because it is the current standard in CSS. This will work in most versions of Firefox, Safari, and Opera. This would be all you need if all browsers supported current standards. Which, of course, they don’t.
filter:alpha(opacity=50); This one you need for IE.
-moz-opacity:0.5; You need this one to support way old school versions of the Mozilla browsers like Netscape Navigator.
-khtml-opacity: 0.5; This is for way old versions of Safari (1.x) when the rendering engine it was using was still referred to as KTHML, as opposed to the current WebKit .

完整的HTML如下：

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>兼容各浏览器实现透明度<title>
<style type="text/css">
.transparent_class {  /* 兼容各浏览器实现透明度 */
      filter:alpha(opacity=50);  
      -moz-opacity:0.5;  
      -khtml-opacity: 0.5;  
      opacity: 0.5;  
      background:#00F;
      color:yellow;
} 
</style>
</head>
<body>
<div class="transparent_class" style="width:500px; height:100px; border:1px solid red;">
兼容各浏览器实现透明度
</div>
</body>
</html>