The Specification is Your Friend » "One of the promises I made to you, the readers of HTML with Style, is that I would teach you proper HTML. Some of this has been made obvious so far, and if you've read other tutorials on HTML you will have noticed that the HTML with Style Tutorials take a different approach.
Some people consider what I'm about to tell you useless information for Web authors. In my opinion this information is the most important information you need to know in order for you to author good Web pages. In this tutorial I'll use what you've learned so far to show how the theory and concepts behind HTML can be used to make you Web pages better." I reckon he's spot on. How can you run when you can't walk yet?