render Heading.new(as: :h1) { "Heading" }
render Heading.new(as: :h2) { "Heading" }
render Heading.new(as: :h3) { "Heading" }
render Heading.new(as: :h4) { "Heading" }
render Heading.new(as: :h5) { "Heading" }
render Heading.new(as: :h6) { "Heading" }