Tag index

Root & document shell

Element	Role
html	Root of an HTML document; carries lang.
head	Metadata container (title, links, meta).
body	Visible document content.

Sections & landmarks

Element	Role
address	Contact information for the nearest article or body.
article	Self-contained composition (blog post, card).
aside	Tangential sidebar content.
footer	Footer for section or page.
header	Introductory / navigational group.
h1–h6	Heading levels forming an outline.
main	Primary unique content (typically once per page).
nav	Major navigation blocks.
section	Thematic grouping with heading.

Text & phrases

Element	Role
p	Paragraph.
pre	Preformatted text block.
blockquote	Extended quotation.
q	Inline quotation.
cite	Title of cited creative work.
code	Short fragment of code.
em	Stress emphasis.
strong	Strong importance.
small	Side comments / fine print.
sub	Subscript.
sup	Superscript.
mark	Highlighted reference.
time	Machine-readable dates/times.
br	Line break within inline context.
wbr	Optional break opportunity.
span	Generic inline wrapper.
div	Generic flow container.

Lists

Element	Role
ul	Unordered list.
ol	Ordered list.
li	List item.
dl	Description list.
dt	Term in description list.
dd	Description / definition.

Links & media

Element	Role
a	Hyperlink anchor.
img	Embedded image.
picture	Responsive picture candidate sources.
source	Media candidates inside audio/video/picture.
video	Video playback.
audio	Audio playback.
track	Timed text tracks (captions, subtitles).
figure	Figure with optional caption.
figcaption	Caption for figure.
map	Image map definition.
area	Hotspot inside map.

Embedded & graphics

Element	Role
iframe	Nested browsing context.
embed	External content integration.
object	External resource / fallback.
canvas	Script-accessible bitmap canvas.
svg	Vector graphics (inline).

Tables

Element	Role
table	Tabular data container.
caption	Table caption.
colgroup	Column grouping.
col	Column metadata.
thead	Header rows.
tbody	Body rows.
tfoot	Footer rows.
tr	Table row.
th	Header cell.
td	Data cell.

Forms

Element	Role
form	Form submission scope.
label	Caption / activation for control.
input	Single-field control (many types).
button	Push-button control.
select	Option picker.
option	Select option.
optgroup	Grouped options.
textarea	Multi-line text.
fieldset	Groups fields.
legend	Fieldset caption.
datalist	Predefined suggestions.
output	Calculation / result output.
progress	Completion progress indicator.
meter	Scalar gauge.

Interactive & scripting

Element	Role
details	Disclosure widget.
summary	Summary for details.
dialog	Modal / non-modal dialog.
script	Embedded / linked script.
noscript	Fallback without scripting.
template	Inert HTML template fragment.
slot	Shadow DOM insertion point.

Metadata & linking

Element	Role
title	Document title.
meta	Metadata.
link	External relationships (CSS, icons, prefetch).
base	Default URL / target for relative URLs.
style	Embedded stylesheet.

Many other elements exist for specialized content (Ruby annotations, MathML hooks, legacy plugins). Reach for native semantics first; consult the HTML standard when you adopt niche tags.