At the Wordpress Codex said next:
- All possible HTML elements should be styled by your theme (unless it is a child theme), both in post/page content and in comment content.
- Tables, captions, images, lists, block quotes, et cetera.
What elements actually should be styled by default in theme? The first things I thought about are h1-h6, paragraphs, lists, button, form inputs. But I absolutely believe it isn't complette list of these elements. What elements I also should necessarily styling in custom theme?