minifies css rules (string). naive approach (doesn't interpret anything)

minifycss.js

var minifyCss = function(s) {
    s = s.replace('\n',       '');  // remove newlines
    s = s.replace(/\s+/g,     ' '); // several whitespace to 1 spacebar
    s = s.replace(/\s*([:;,{}])\s*/g, '$1'); // strips whitespace around :;,{} characters
    s = s.replace(/\/\*(.|[\r\n])*?\*\//g, ''); // uses non-greedy matching *? to remove comments
    return s;
};