TOOLS - CSS: Professional Techniques for Modern Layout - page 18

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Figure 1-18: The IE Developer Toolbar with Show Default Styles disabled.
h e IE Developer Toolbar includes a subset of the Web Developer Toolbar's features, but most
of the really useful ones , like outlining elements and validating local HTML and CSS, appear
on the i rst layer. View also has a nit y entry called CSS Selector matches (see Figure 1-19).
h is will pop up a window that shows you all the rules in the CSS and how many times each
one matches elements in the document. Any rule that says “0 match(es) for:” isn't matching
anything on the page, and you should consider removing that rule.