A List Apart

Menu Issue № 199

More About Custom DTDs

by The W3C QA Group · 34 Comments

Your web page uses non-standard elements, so, following the advice of earlier ALA articles, you bang out a custom DTD to make sure your document still validates. Not so fast, says the W3C’s Quality Assurance team, who argue that crafting a custom DTD for the sole purpose of validation is a mistake … and then tell when it is the right thing to do.

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