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I noticed this rule in Firebug:
*|*:link {
color:#0000EE;
}
I’m not sure that I’ve ever seen the vertical bar (|) before. It’s in the about:PreferenceStyleSheet so it may be Firefox-specific.
What does it mean? Any link to a reference? I thought possibly that the vertical bar was an “OR”, but that’s the comma in CSS.
The
|selector is the namespace selector. The part before the|is the namespace and the part after the|the selector.So
*|*:linkmeans to match any element in any namespace that is a link.