Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
920 views
in Technique[技术] by (71.8m points)

cross browser - Why doesn't this a:visited css style work?

Is there any reason why this does not work on Internet Explorer or Chrome:

<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.

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.

Question&Answers:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

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.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...