You can either type in the image name or use the file navigation tools to locate it. Another common HTML tag is the numbered and un-numbered list tags. These were both used in the outline of this workshop, at the beginning of the document. Simply use the numbered lit, or bullet list buttons on the tool bar. People have different size screens, and they can change them while viewing a page.
Some browsers deal with errors better than others.
Test your pages on several different computers, with different monitors, hardware, browsers, etc. to get the best results. Use graphics sparingly. People dialed-in do not have high speed connections, graphics equate to slow loading pages for them. Put a contact name and email address on every page, so people can report problems to you. This command takes your HTML file and possibly it's related graphics and sends them to the usm web server.