lAttr \"details\" ... @
details ∷ forall t m a. DomBuilder t m ⇒ Details → m a → m a
details bm children = snd <$> details' bm children

-- | A short-hand notion 
details' ∷ forall t m a. DomBuilder t m ⇒ Details → m a → m (Element EventResult (DomBuilderSpace m) t, a)
details' bm  = elAttr' "details" (A.attrMap bm)
details' bm  = elAttr' "details" (A.attrMap bm)