No sexism intended , I ' m satisfied with the amount of gentleman nipples in my life currently , but there is a deficit of lady nipples . I ' m simply trying to even out the numbers <| sep |> You ' re right I remember that now , my dad flies the 380 and told me this when he first transferred which was many years ago <| sep |> If you mean you are still not sure which doctype to use , just always use ! DOCTYPE html talked about in the closest thing to an official spec doctypeYou don ' t even need to think about the other doctypes and what mode they might put the browser in or what validation tools you might use with them because you are making something new . Only if you are working with old code and you are not ready to remove the obsolete stuff would you even need to consider using a different doctype . Even then your best option is probably to use this doctype and then address any issues that causes .