Much of this is covered in Chapter 1 of JournalismNext. Go back and read p. 26 to 39 if you want to review.
In Class Exercise:
Create new HTML document.
View Split Screen.
Follow the instructions at http://www.htmldog.com/guides/htmlbeginner/tags/
Type the code into the top window. Each time you make a change, save.
Click on Earth icon to preview in browser.