Periodic

main root + sectioning root (html, body)
content sectioning (address, article, aside, footer, header, h1-h6, hgroup, main, nav, section, search)
text content (blockquote, dd, div, dl, dt, figcaption, figure, hr, li, menu, ol, p, pre, ul)
inline text semantics (a, abbr, b, bdi, bdo, br, cite, code, data, dfn, em, i, kbd, mark, q, rp, rt, ruby, s, samp, small, span, strong, sub, sup, time, u, var, wbr)
image & multimedia (area, audio, img, map, track, video)
table content (caption, col, colgroup, table, tbody, td, tfoot, th, thead, tr)
forms (button, datalist)
interactive elements