I am practicing with org->html conversion by trying to export an html resume.

I have the following

* Resume
** About
:PROPERTIES:
:HTML_CONTAINER: header
:END:
*** George Mauer
:PROPERTIES:
:HTML_CONTAINER: h1
:END:
*** Contact
:PROPERTIES:
:HTML_CONTAINER: article
:HTML_CONTAINER_CLASS: contact
:END:
**** Location
:PROPERTIES:
:HTML_CONTAINER: aside
:HTML_CONTAINER_CLASS: city-state
:END:
New Orleans, LA
**** Email
:PROPERTIES:
:HTML_CONTAINER_CLASS: email
:END:
[[mailto:gmauer@gmail.com][gmauer@gmail.com]]
**** Blog
:PROPERTIES:
:HTML_CONTAINER_CLASS: blog
:END:
[[http://georgemauer.net][georgemauer.net]]
**** LinkedIn
:PROPERTIES:
:HTML_CONTAINER_CLASS: linkedin
:END:
[[https://www.linkedin.com/in/george-mauer/][LinkedIn]]
**** StackOverflow
:PROPERTIES:
:HTML_CONTAINER_CLASS: stackoverflow
:END:
[[https://stackoverflow.com/users/5056/george-mauer][StackOverflow]]
**** GitHub
:PROPERTIES:
:HTML_CONTAINER_CLASS: github
:END:
[[https://github.com/togakangaroo/][GitHub]]

And the following .dir-locals.el

((org-mode . ((org-export-with-section-numbers . nil)
(org-html-html5-fancy . 't)
(org-export-with-toc . nil)
(org-html-postamble . nil))))

When I export this to html the HTML_CONTAINER and HTML_CONTAINER_CLASS properties are working for the Contact and my name and About headers, but all the headers underneath Contact appear as `ul` with no classes.

It would seem that there's some sort of "level" beyond which heading are not customizable.

Is that how it works? I'm not finding a variable I can override if it is.