XHTML Basics - Part 3 Introduction This is part 3 of my series, XHTML Basics. Remember: you can try all the code in this series. In this part of the series, I treat important XHTML elements. Let us start straight away. Headings As you write a document, the document has headings. You can have a main heading, which is like the title of the page; within the page you would have sub headings. The thing to note here is that headings are of different sizes. There are six XHTML elements for this. The... Sign in to see full entry.