Thoughts on web development and technologies by Peter Gasston
The importance of DOCTYPE
John’s Essential Guide to CSS is a ‘pocket guide’ to the language. There are many out there, but I decided to link to this one because of it’s very first link: Fix Your Site with the Right DOCTYPE.
I cannot stress enough the importance of working to a valid DOCTYPE; it’s good for the web, and it’s good for web developers. I remember the Eureka! moment of discovering how DOCTYPEs work, when all of a sudden cross-browser coding became that much easier. It’s an absolute basic of web development, so if you’re not familiar with how it works then I suggest you read the article forthwith.