// ReSharper disable once CheckNamespace namespace ExCSS { internal sealed class FirstChildSelector : BaseSelector, IToString { FirstChildSelector() { } static FirstChildSelector _instance; public static FirstChildSelector Instance { get { return _instance ?? (_instance = new FirstChildSelector()); } } public override string ToString(bool friendlyFormat, int indentation = 0) { return ":" + PseudoSelectorPrefix.PseudoFirstchild; } } }