It is often used to provide explanations to people who may need to look at the HTML code and make changes at a later time. In the EPOB Web pages, we use these to mark sections of the page that you may need to edit. Change the text as needed. Also within this section you will find one or more links. H1 is the largest heading, H2 is a little smaller, etc.
Headings always appear on a separate line from surrounding text.
When finishing editing, save the revised file. Preview the file on your computer using a Web browser. Netscape will show you how the page will look on the Web. If the file contains images, they will appear as blank spaces when previewing a Web page file that resides on your desktop computer, unless you also downloaded the image files. If you are merely editing the text, this should not be a concern.