为什么不这样：访问css风格的工作？ [英] Why doesn't this a:visited css style work?
问题描述
是否有任何理由为什么这在Internet Explorer 9上无效：
< html&
< head>
< style>
A {font-weight：bold; color：black;}
A：visited {font-weight：normal;颜色：黑色; }
.Empty {font-weight：bold;颜色：黑色; }
< / style>
< / head>
< body>
< a href =http：// mysite>点击我< / a>
< / body>
< / html>
我点击的链接从不会正常，只是保持粗体。
编辑：它也无法在Chrome中使用。我错了什么？
编辑：更改大小写不会影响它。
< 编辑：更改颜色工作，
编辑：解决方法是更改辅助功能以忽略网络颜色。我没有访问源，所以我不得不这样做。
实际上，这没有什么具有区分大小写。这是一个安全功能。 ：visited 伪类的功能在许多现代浏览器（Fx4，IE9，Chrome）中已被限制以防止CSS exploit：read about it 在这里。
如今， code> getComputedStyle（）在这些浏览器中通常返回被访问链接的值，就好像他们没有被访问一样。但是，我可以简单地想象一下：使用 font-weight 来访问链接，元素的宽度改变，因此浏览器允许改变 font-weight $
$ b 此问题没有解决方法。
Is there any reason why this does not work on Internet Explorer 9:
<html>
<head>
<style>
A {font-weight: bold; color:black;}
A:visited {font-weight: normal; color: black; }
.Empty {font-weight: bold; color: black; }
</style>
</head>
<body>
<a href="http://mysite">click me</a>
</body>
</html>
The link I click never goes to normal and just stays bold. On some other browsers it works.
Thanks.
Edit: it doesn't work in chrome either. What am I doing wrong?
Edit: changing case did not affect it.
Edit: changing a to a:link did not affect it.
Edit: changing color works, just not font-weight.
Edit: workaround was to change accessibility to ignore web colors. I do not have access to the source, so I had to do it this way.
Actually, this has nothing to do with case sensitivity. This is a security feature. The functionality of :visited pseudoclass has been restricted in many modern browsers (Fx4, IE9, Chrome) to prevent CSS exploit: read about it here.
Nowadays, getComputedStyle() in these browsers usually returns values for visited links as if they weren't visited. However, I can simply imagine circumventing of that: using font-weight for visited links, the element's width changes so browsers that would allow changing font-weight for :visited links wouldn't actually fix the security hole.
Thus, there's no workaround for this issue.
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