Web pages are just text documents. They just appear to be something other than text documents when viewed with a web browser. However, using software specifically designed to create web pages visually can save a great deal of time. Many different programs exist that offer varying degrees of function and ease of use. Composer does have a good level of function, it integrates very well with Navigator, it's available cross platform, and best of all it's free.
Composer is certainly a good place to start.
The toolbar set up in composer similar to that of a word processing program like MS Word. Text styling, cut and paste, file control are all relatively similar. The first thing to do is give your page a name that will appear when it is opened by any browser. This will bring up the page properties screen that will allow you to define your entire page. After entering a title, move on to colors and background.