title: background-color doesn't work on a:visited but it works if i add any background color to a {background:#fff}, Is it a bug?
body: <p><code>background-color</code> doesn't work on <code>a:visited</code> but it works if i add any background color to <code>a {background:#fff}</code>, Is it a bug?</p>
  
  <p>See this example <a href="http://jsfiddle.net/jitendravyas/CMWWm/1/" rel="nofollow noreferrer">http://jsfiddle.net/jitendravyas/CMWWm/1/</a> <strong>green background</strong> on <code>a:visited</code> will not work. <strong>But</strong></p>
  
  <p>Now if i add <code>a {background:#fff}</code> at top then green background on <code>a:visited</code> will start to work. <a href="http://jsfiddle.net/jitendravyas/D6vGX/1/" rel="nofollow noreferrer">http://jsfiddle.net/jitendravyas/D6vGX/1/</a></p>