/// <summary>
/// Whether the tree node matches the filter
/// </summary>
/// <param name="node">The tree node of type T</param>
/// <returns>
/// true, if the node matches, otherwise false
/// </returns>
protected override bool AcceptNode(HtmlElement element)
{
bool hidden = false;
string displayValue = element.GetStyle(Css.Properties.DISPLAY);
bool isDisplayNone = CssHelper.IsDisplayNone(displayValue);
bool displayNoneIsDefaultValue = _defaultStyleLookup.IsDefaultValue(element.TagName, Css.Properties.DISPLAY, Css.Values.DISPLAY_NONE);
if (isDisplayNone && !displayNoneIsDefaultValue)
{
hidden = true;
}
return(hidden);
}