Announcements

	Books are available today!
	Reading:
			It’s important -- My lectures review reading
			Unannounced quizzes based on reading
			So far, Chapters 2-4 have been assigned
			Reading for Friday -- Chapter 5

Hypertext Markup Language

	HTML is the language of Web pages

Web Pages in HTML

HTML Structure

	All HTML files use the same structure:

First HTML Web Page

	This HTML produces this result

The Source

	HTML code producing a page is the source...which can always be viewed

HTML Must Be Text

	Word processors (recall Chap. 2) insert formatting tags, confusing browsers
			Create source in WordPad, etc.
			Save in Text or txt format
			Save with file extension .html

Illustrate the Process

Illustrate the Process

Add An Image

	Images are encoded two ways:
			GIF -- Graphics Interchange Format -- is for diagrams and simple drawings
			JPEG -- Joint Photographic Experts Group -- is for high resolution photos, complex art
			The encoding is given in the file extension
	Image tags for placing images
			<img src="writers.gif">

Illustrate the Process

Illustrate the Process

File Structure

	The path must say how to reach the file
			When the file is in the directory as the web page, just give the file name, ski.jpg
			If the file is in a subdirectory, say how to navigate to it,  pix/ski.jpg
			If the file is in a superdirectory, move up using dot-dot notation, ../ski.jpg

Illustrate

Illustrate

Summary

	Web pages are written in HTML
			The files must be text
			The file extension must be .html
	Tags enclose content like parentheses
			Control look with attributes on tags
	Use a change-and-test process
	Images have two formats and explicit paths