I want to use sub-headings in posts. I think it would be better to use something like h2 or h3, but Twenty Ten uses h1 for the post titles when showing single posts, and h2 post titles when showing the home page, and also the h3 tag is being used by the comment section.
I want to use a correct heading structure, i.e, h1, h2, h3, h4; but I don't know how. I want to be able to do it without editing the theme's files and instead use the child theme.
So far, following the advice of the Codex I've been using h4, but this is far from satisfactory.