We didn't spend hours studiously poring over some reference book before we wrote our first HTML document. You probably shouldn't, either. HTML is simple to read and understand, and it's simple to write, too. And once you've written an HTML document, you've nearly completed your first XHTML one, too. So let's get started without first learning a lot of arcane rules.
To help you get that quick, satisfying start, we've included this chapter as a brief summary of the many elements of HTML and its progeny, XHTML. Of course, we've left out a lot of details and some tricks that you should know. Read the upcoming chapters to get the essentials for becoming fluent in HTML and XHTML.