Quirks Modus
Code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
Standard Modus
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
Erklärungen:
CSS 4 You - The Finest in Stylesheets: Workshop Doctype-Switch: Teil 1 - Doctype-Switching
SELFHTML: Stylesheets / CSS-Formate definieren / Das CSS Box-Modell