Browser competition

Before going further in a framework implementation, I had a look at the Browser Statistics from w3schools. As they mention, it's only statistics, but I come up to the idea that my framework would be compatible with IE 6.0 and 7.0, Firefox 1.0 and 1.5, Safari 1.3 and 1.4 and Opera 8.5.
I will then gives you some feed back about cross-browser compatibility.
Let's begin with a simple example, the width style property of a DOM element.
Width is something abstract because from one browser to another, you don't see element the same size! In IE width is really what you see. It is the width of the element from one side to the other. In Firefox, width as a different meaning. It is the space available for displaying the child elements of a given element. On the screen, I would call it the internal width of an element. When you set the width of an element to a certain value, your element, from one side to the other as a total width of the value you specified plus the borders width plus the padding width.

Let's see an example of the width style property.