[2] SGML の慣習を引き継いだ略語:
hn,
p,
ul, ol, dl, li, dt, dd, xmp
[13]
Texinfo を引き継いだ略語:
kbd,
dfn,
var,
samp
[4] 語頭を使った略語:
b, i, u, s, q,
hr, bq,
href, iframe, valign, hspace, vspace,
pre,
br, em,
<dir>, dir="", del, ins, lang,
fig, alt,
figcaption,
xmlns,
cols
[5] 母音を抜いた略語: img, src="",
datafld, datasrc, dataformatas
accept-charset (HTTP の影響)event-source → eventsource に改称repeat-*,
data-*, aria-*,
カスタム要素[10] _ を使った名前: vcard_name
[11] 区切子のない複合語:
blockquote, blockcode, frameset, datatemplate, registrationmark, textarea, htmlarea,
hreflang,
usemap, ismap,
noframes, noscript, noembed,
accesskey,
tabindex,
readonly,
contenteditable,
on*