protected override void ReplaceWith(ICssRule rule)
{
var newRule = rule as CSSGroupingRule;
_rules.Clear();
_rules.Import(newRule._rules, Owner, Parent);
}
protected override void ReplaceWith(ICssRule rule)
{
var newRule = rule as CSSKeyframesRule;
_name = newRule._name;
_rules.Clear();
_rules.Import(newRule._rules, Owner, Parent);
}
internal void ReevaluateFromUrl(String url)
{
TryCancelCurrent();
_cssRules.Clear();
_current = ParseAsync(url, _cts.Token);
}