static void Main(string[] args)
{
#region Presentation
Composite root = new Composite("html");
root.Add(new Leaf("img"));
root.Add(new Leaf("br"));
Composite comp = new Composite("div");
comp.Add(new Leaf("hr"));
comp.Add(new Leaf("br"));
root.Add(comp);
root.Add(new Leaf("img"));
// Add and remove a leaf
Leaf leaf = new Leaf("br");
root.Add(leaf);
root.Remove(leaf);
// Recursively display tree
root.Render(1);
// Wait for user
Console.ReadKey();
#endregion
}