When dimensioning an object I can use the width and height attributes, but both FireFox and Opera let me size things by specifying both the right and left attribute as well. IE doesn't. Does the specification say anything about this, and if: where can I look such things up another time???
Dimensioning using width vs. left/right
The rules may be found at;
The above are normative, that is, they are the "standards".
css2.1 (revision 1 candidate) http://www.w3.org/TR/CSS21/
Generally implemented in modern browsers.
css3 (proposed draft—coming attractions, soon to be at a theater near you) http://www.w3.org/Style/CSS/current-work
MSIE is an obsolete, buggy, non-standards-conforming, bloated, walking security vulnerability, pig of a browser. People, who don't know any better, may actually like it. The usual way of life is to make your page, the hack, work around, or just plain dumb down the code for IE.