Is it possible to do mathematics inside CSS?

Question

I have jquery accorion id #accordion and some of the content inside header class name .simpleColor. Now I want to give a calculated margin to .simp

Answer 1

I believe the CSS should be pure style definition. I dont like to mix some calculations with that. I would do that in my javascript

var accWidth=parseInt($("#accordion").css("width").replace("px",""));
var simpWidth=parseInt($(".simpleColor").css("width").replace("px",""));
var marginLeft=((accWidth/2)-(simpWidth/2));       
$(".simpleClass").css("margin-left",marginLeft);

Working sample http://jsfiddle.net/mzTRw/19/