/// <summary>
/// Takes a string and transforms it into a CSS value.
/// </summary>
internal CssValue ParseValue(String valueText)
{
var tokenizer = CreateTokenizer(valueText, _config);
var token = default(CssToken);
var state = new CssUnknownState(tokenizer, this);
var value = state.CreateValue(ref token);
return token.Type == CssTokenType.Eof ? value : null;
}
