Decimal Notation

spaces

word space

character	notation	browser
a1 word space		\| \|
a2 no-break space		\| \|
en space en space		\| \|
en quad		\| \|
em quad		\| \|
em space		\| \|
a6 three-per-em		\| \|
a7 four-per-em		\| \|
a7 six-per-em		\| \|
figure space		\| \|
a2 punctuation space		\| \|
a4 thin space		\| \|
a5 hair space		\| \|
zero width space		\|\|
zero width non-joiner	‌	\|‌\|
zero width joiner	‍	\|‍\|
zero width no-break space		\|\|
left-to-right mark	‎	\|‎\|
right-to-left mark	‏	\|‏\|
line separator		\| \|
paragraph separator		\| \|
left-to-right embedding	‪	\|‪\|
right-to-left embedding	‫	\|‫\|
formatting	‬	\|‬\|
left-to-right override	‭	\|‭\|
right-to-left override	‮	\|‮\|
left-to-right mark	‎	\|‎\|
right-to-left mark	‏	\|‏\|

calculator

html to pseudo-element

symbols in html

Entities, symbols & characters have four methods of reference:
Named, Decimal, Hexadecimal, and Unicode, but only the Decimal form is reliable across browsers and platforms.

To use decimal notation encoded in UTF-8 insert
<meta charset=“utf-8”>
as the first line in the <head> of your document.

utf-8 encoding

The name is an acronym of Unicode Transformation Format 8-bit.
Unicode is an abbreviation of Universal Coded Character Set.
It is a Character encoding capable of encoding all characters,
1, 114, 112 in total.

It is the dominant character encoding for the world wide web, accounting for 93.9% of web pages in March 2026.