org-html-html5-elements

org-html-html5-elements is a variable defined in `ox-html.el'.
Its value is

("article" "aside" "audio" "canvas" "details" "figcaption" "figure" "footer" "header" "menu" "meter" "nav" "output" "progress" "section" "video")

• This variable may be risky if used as a file-local variable.

Documentation:
New elements in html5.

For blocks that should contain headlines, use the HTML_CONTAINER
property on the headline itself.