Why Are My Styled Visited Links Not Working in Some Browsers?-CSS Tutorial-php.cn

Why Are My Styled Visited Links Not Working in Some Browsers?

Linda Hamilton

Release： 2024-12-02 05:34:09

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Why Are My Styled Visited Links Not Working in Some Browsers?

Why Doesn't This CSS Style for :visited Links Work in Specific Browsers?

The following HTML and CSS code seems to exhibit an issue with styling visited links in Internet Explorer and 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>

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Despite applying the :visited pseudoclass, the clicked link remains bold instead of returning to normal weight. This behavior also occurs with Firefox 4, IE9, and Chrome.

Security Considerations and Workarounds

The functionality of the :visited pseudoclass has been restricted in modern browsers to prevent potential CSS exploits. These browsers implement specific measures to protect against such vulnerabilities:

getComputedStyle() returns values for visited links as if they were unvisited.
Sibling selectors (e.g., :visited span) cause adjacent elements to be styled as unvisited.
Nested link elements may render as unvisited in certain scenarios.

Unfortunately, there is no workaround for this security measure in browsers that have implemented these restrictions. Changing the accessibility settings to ignore web colors, as mentioned in the original question, would not resolve the issue.

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