The attribute selector

(more info: <http://www.w3.org/TR/REC-CSS2/selector.html#attribute-selectors>)

p[id] { color: #0f0; }

This sentence should be green.

Hides CSS from:

• Netscape 4.x
• Mac IE 4.01
• Mac IE 5
• Win IE 6 and lower
• Mac iCab 2.51
• Win Opera 3.60
• Win Amaya 5.1

Unfortunately iCab behaves as if [id] was not there. If the selector is p[id] iCab renders every p element green :-(