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What CSS selectors does a browser support?
In CSS 2, IE/Win doesn't support the following selectors:
- adjacent sibling selectors (E1 + E2);
- attribute selectors (E[foo], E[foo="warning"], E[foo~="warning"], and E[lang|="en"]);
- child selectors (E > F).
Netscape 4.x doesn’t support:
- adjacent sibling selectors;
- attribute selectors;
- child selectors;
- universal selectors (*);
- most (if not all) ID selectors with an element prefix (E#myid).
Internet Explorer 5.x on the Macintosh doesn’t support:
- attribute selectors.
Mozilla (and similar browsers), Opera, and Safari should support all of CSS 2’s selectors. For CSS 3 selectors, visit the Guide to CSS3 Selector Support.