Introduction to HTML/XHTML

Table of Contents

1. Introduction to HTML/XHTML
2. Structure of an HTML Document
3. Getting Started with HTML
4. Hypertext Links
5. Including Pictures
6. A bit more on XHTML
7. Updating Existing HTML Documents to XHTML
8. Cascading Style Sheets
9. Style Properties for Text
   1. Examples of Style Properties for Text
   2. Contextual Selectors
   3. Classes
   4. Style Properties for the Anchor Tag
   5. Defining a Linked Style Sheet
   6. Adding Comments to your Style Sheet
10. Utilities
11. Books and Further Reading
12. The End

Contextual Selectors

These are strings of two or more simple selectors that let rules apply in certain circumstances. For example, if text that is to be emphasises within a paragraph wants certain decoration but emphasis text within, say, a heading doesn't. Consider the following:

Rule	Presentation
p em {background:red; color:white; font-style:italic}
Heading with emphasised text	Heading with emphasised text
Paragraph with emphasised text	Text with emphasised text

Note: the decoration on the emphasised text only when associated with a paragraph tag and not any other tags.