CSS Interpretation Discrepancies

Seems like I have just found one CSS detail which Internet Explorer and Netscape interprets differently - namely the relationship between width and padding.

It seems as if Netscape uses a display width equal to the set width + padding, whereas Internet Explorer (and also Dreamweaver) will have display width equal to set width, interpreting padding as being inside not outside of width.

Example: If I have padding 10px and width 700px then the entire div will be 700px wide in Internet Explorer and 720px wide in Netscape. The problem not being evident before I, in a stack of such tags, suddenly wanted one element padding 0px...

Frustrating thing. Solved it by making another div outside of the stack which defined the width, and then removing the width tag of the div's inside it.