Using a Correct Doc Type

I discussed in Part 1 the importance of using a correct doc type. Using either an incomplete doc type, or no doc type at all, will drop your browser into “quirks mode,” which causes your CSS to be improperly rendered and will set you on a road to frustration and confusion. Always set your web pages up correctly. You can do this by making sure you have a valid doc type. (As with the rest of this series, we use the XHTML Transitional doc type.)