public void Combine(CssActiveSheet another)
{
MergeContent(this.rulesForClassName, another.rulesForClassName);
MergeContent(this.rulesForAll, another.rulesForAll);
MergeContent(this.rulesForElementId, another.rulesForElementId);
MergeContent(this.rulesForPsedoClass, another.rulesForPsedoClass);
MergeContent(this.rulesForTagName, another.rulesForTagName);
}
static Dictionary<string, CssRuleSetGroup> CloneNew(Dictionary<string, CssRuleSetGroup> source)