code: function fix(what, before, after, replacement, css) {
  	what = self[what];
  
  	if(what.length) {
  		var regex = RegExp(before + '(' + what.join('|') + ')' + after, 'gi');
  
  		css = css.replace(regex, replacement);
  	}
  
  	return css;
  }
docs: Private helper