What's Up, DOCTYPE? The absence of a DOCTYPE is a crime punishable by death. You may have relied on the following DOCTYPE in the past, but it's important to know that this is now being superseded by a leaner and meaner snippet. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> Ideally, the HTML5 DOCTYPE should be used. It's suppor