??? "details"
    content

    ???+ "open nested details"
        content

        more content

---

??? optional-class "details with class"
    content

---

??? multiple optional-class "details with multiple class"
    content

---

??? only-class
    content

---

??? multiple classes
    content

---

??? "details end test"
    content
other content

---

???relaxed  spacing   "Title"
    content

---

???relaxed  spacing no  title
    content
