The text for your webpages: default and otherwise

Here is something that I learned from a recent HTML programming tutorial lesson: every web browser has a default text size and style. When you are setting up your webpages, if you don’t specify any special characteristics for your text, your web browser will simply use the default style and size — the one that is the default of your site visitor, not the default of the web browser on your PC. This points out an obvious problem: different people may have different browsers on their computers, with a different default text. If you simply allow the default text on the visitor’s PC to be used, your webpages can take on a wildly different appearance from one PC to the next.