+
+>> The HTML5 "Details" tag would be perfect:
+>> <https://www.w3schools.com/TAGS/tag_details.asp>
+>> <details><summary>example</summary>here's an example</details>
+>> The above works for me on ikiwiki.info which does not have `html5:1`
+>> so far as I can tell *— [[Jon]], 2020-04-21*