The css below crashes safari.

This link demonstrates the effect Test.

This span demonstrates the effect.

Haven’t tested it on windows but as ie doesn’t do generated content I don’t expect it to have any effect.

    a:hover:after
                {
                   content: 'test';
                   position: absolute;
                }
                
        span:hover:after
        {
            content: attr(class);
            position: absolute;
            color:red
        }
    

Back to my browser bugs page