What ⎸ means
It joins the left side of a cell-based box.
Terminal graphics drew borders from fixed-cell strokes. A proposal from 2000 cites ⎸ in IBM and Heath/Zenith sets; it meets ⎽ at a bottom corner and ─ at a T-junction.
Technical, with a structural role.
It is an edge piece, not a general divider.
Don't confuse it with
2Questions people ask
1Will every font align it correctly?
No. A centered glyph may break connected borders; the stroke’s position comes from the font.
How to type ⎸
Windows (Word)
Alt+XType 23B8, then Alt+X to get ⎸.
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 “left vertical box line”.
Linux
Ctrl+Shift+UType 23b8, then Enter or Space.
HTML
⎸CSS
\23B8Codes and encoding1 code points
HTML decimal
⎸
HTML hex
⎸
CSS content
content: "\23B8";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%8E%B8
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.