What 🄀 means
It is the enclosed form of 0..
ARIB STD-B24 is Japan’s digital-broadcast text standard. A 2007 Japanese TV-symbols proposal lists ARIB code 9216 as 0.. A 2008 Unicode proposal adds 🄀 to preserve that standard’s entry and complete the enclosed 1.–9. series.
Can software turn it into plain `0.`?
Yes. NFKC can replace it with 0..
NFKC is a text-normalization form that simplifies some compatibility characters; here it yields the two characters 0 and .. Check for this if the enclosure matters.
Don't confuse it with
1Questions people ask
1Why does 🄀 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type 🄀
Windows (Word)
Alt+XType 1F100, then Alt+X to get 🄀.
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “digit zero full stop”.
Linux
Ctrl+Shift+UType 1f100, then Enter or Space.
HTML
🄀CSS
\1F100Word for Windows
As of 2026, type `1F100` and press `Alt+X`; select those six digits first if preceded by other hexadecimal digits.
Codes and encoding1 code points
HTML decimal
🄀
HTML hex
🄀
CSS content
content: "\1F100";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%F0%9F%84%80
1
On screen
1
Code points
2
JS .length
4
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.