HTML reference resources
The HTML editor makes is easy to create emails and text with nice fonts, colors, links, etc. The majority of time this is all you'll need. However, you may find that you need more control over your text or that some text (maybe something pasted from another program) is not displaying the way you want.
In this case you may want to dig a bit deeper and view the Source of your document to see what's going on. Click the Source button in the very top left of the editor to view your HTML. It may look like crazy machine language at first but once you understand what you are looking at it will give you greater control over your message.
Here is a handy HTML guide that can help you gain even more control over the look and feel of your email, home page or any other message you are working with: http://www.webmonkey.com/2010/02/html_cheatsheet/