The Composer icon is the one farthest to the right. When Composer opens, a blank screen will appear in Edit mode. We use this mode to create a web page in the same way as we create documents in a word processor. Save your untitled document in the following manner. Type a name for the file in lowercase with no spaces.
Titles are different than filenames.
This will be explained in more detail below. Notice the example above. When you save as a web page, the .htm extension is essential. Browsers won't recognize your web page without that extension. Also, using lowercase without spaces or special characters ensures that all servers will be able to read your files.