void heading_tags()
        {
            new[] { 1, 2, 3, 4, 5, 6 }.Do(x =>
            {
                context["heading{0} tag".With(x)] = () =>
                {
                    pdf = new Section();
                    pdf.AddHtml("<h{0}></h{0}>".With(x));

                    it["adds a paragraph with the style 'Heading{0}'".With(x)] = ()
                        => pdf.LastParagraph.Style = "Heading{0}".With(x);
                };
            });
        }