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Chapter Three. The Trouble with Standards > IE5/Mac: Switching and Zooming

IE5/Mac: Switching and Zooming

IE5/Mac was so attuned to standards that it varied its display and performance according to the <!DOCTYPE> listed at the top of a web page's markup—a technique called DOCTYPE switching, to be discussed in greater detail in Chapter 11, “Working with Browsers Part I: DOCTYPE Switching and Standards Mode.” Put simply, with the right DOCTYPE, a page would display and function as web standards said it should. With an old or partial DOCTYPE (or none), the page would render in backward-compatible “Quirks” mode, to avoid breaking nonstandards-compliant sites—that is, to be kind to 99.9% of commercial sites on the web, at least for now [3.5].


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