HTML opening

Base tag

head, link, title tags

body, main, p tag

header, footer, section tags

address, article, aside tags

hgroup, nav tag

meta tag

style tag

h1-h6 tags

contentEditable, accesskey tag

hidden, spellcheck, tabindex tags

blockquote, cite, hr, pre tags

div, figcaption, figure tag

dl, ul, ol list

a, abbr, b, strong, em, span, mark tags

bdo, data, i, dfn, kbd, codebase

ruby, q, rb, rp, rt, rtc tags

del, ins, samp, small, sub, sup tags

time, map, area, img, picture tags

Usage of var and noscript tags

script tag usage

iframe, source tag usage

table table related tags

form, fieldset, legend, select, option, optgroup tags

input, label, datalist label

textarea, meter, output, progress tags

video video element

audio audio element

Application of track element

embed, object, param elements

canvas element

summary, details, dialog elements

slot, template elements

HTML completion and what I want to say