dom.dov

html(5) ->
  meta ->
    title ->
      "My Website"
  body({ class: control.name, id: control.action.name }) ->
    p ->
      "Hello, World!"

dom.io

html(5) do(
  meta do(
    title do("My Website")
  )
  body(control.name, control.action.name) do(
    p do("Hello, World!")
  )
)

dom.rb

html 5 do
  meta do
    title { "My Website" }
  end
  body class: control.name, id: control.action.name do
    p { "Hello, World!" }
  end
end