How people look at elements on a web page

When it comes to web design, the most important thing you should know is how people tend to look at a web page. For example, English speaking people (well, western culture to generalize) tend to read from left to right and therefore the main point of attraction for them would be in the upper left corner. Web designers use this knowledge for enhancing the website aspect.

Ten CSS tips designers should know or learn

1. Alternative stylesheets

A page can be given one default stylesheet and any number of alternate style sheets for the user to choose from.
The way you can switch between them depends on the browser; most browser have this option under View -> Page Style or something similar. Some browsers unfortunatly don’t offer a menu for changing the page style yet.
To include extra stylesheets, you just have to add more <link> elements in the header, with the right rel and title attributes.