Using HTML 5 now would only mean using wellformed documents and dropping "deprecated" attributes and elements from your HTML document (e.g. not using font, cellspacing, etc attributes). You don't have to use the new elements introduced (since IE pretends such elements don't exist).
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Using HTML 5 now would only mean using wellformed documents and dropping "deprecated" attributes and elements from your HTML document (e.g. not using font, cellspacing, etc attributes). You don't have to use the new elements introduced (since IE pretends such elements don't exist).