> They're not really changing the DOM (at least not IMO).  You can't add
> tags and structure to the HTML with CSS - you can only change the value
> of text nodes (and then, only by adding to them).

AFAIK, this is not changed either. The added content is purely
*presentational*.

> <span class="negative">200</span>
> 
> With css for one page
> .negative:before {content: '-'}
> 
> And for the other page,
> .negative:before {content: '(';}
> .negative:after {content: ')';}

I'm not sure this a good example as this added content is only served to a
few users...

--
Regards,
Thierry
www.tjkdesign.com | www.ez-css.org | @thierrykoblentz




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