>Basically, these last three declarations say: apply this styling only >to the list item ID specified, provided it is preceded in the document >heirarchy by an element with the first-listed ID, which is our body >tag ID. If the ID specified is NOT preceded by the first-listed ID, >then the styling will not apply. Therefore, we have effectively >created conditional styling based on the current page. > >Now, all you have to do is correctly ID the body tags of your pages. > >Make sense? > > > Yes and no. It is a beautiful use of CSS, and at the same time advertises bad usability and accessibility. The currrent page should never be a link and link to itself, therefore making a highlight CSS only is as bad as making it dependent on scripting or plugins.