/// <summary> /// Before the curly bracket of an @keyframes rule has been seen. /// </summary> public CssKeyframeRule CreateKeyframeRule(CssToken token) { var rule = new CssKeyframeRule(_parser); rule.Key = CreateKeyframeSelector(ref token); if (rule.Key == null) { _tokenizer.JumpToEndOfDeclaration(); return(null); } FillDeclarations(rule.Style); return(rule); }