HTML Entity for Centre Line Symbol (℄)
What You'll Learn
How to display the Centre Line Symbol (℄) in HTML using numeric references and CSS escapes. This character is U+2104 (CENTRE LINE SYMBOL) in the Letterlike Symbols block (U+2100–U+214F). It marks imaginary centre lines through the axis of symmetric features in technical and engineering drawings.
There is no named HTML entity for U+2104. Use ℄, ℄, or \2104 in CSS content. Do not confuse ℄ with the Cent Sign U+00A2 (¢, currency) or Care Of U+2105 (℅).
⚡ Quick Reference — Centre Line Symbol
U+2104Letterlike Symbols block
℄Hexadecimal reference
℄Decimal reference
—None (use numeric refs)
Name Value
──────────── ──────────
Unicode U+2104
Hex code ℄
HTML code ℄
Named entity —
CSS code \2104Complete HTML Example
This example shows U+2104 using hexadecimal and decimal references plus a CSS content escape. There is no named HTML entity:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\2104";
}
</style>
</head>
<body>
<p class="cl-label">Centre Line Symbol using Hexa Decimal: ℄</p>
<p class="cl-label">Centre Line Symbol using HTML Code: ℄</p>
<p class="cl-label" id="point">Centre Line Symbol using CSS Entity: </p>
</body>
</html>🌐 Browser Support
The Centre Line Symbol entity is supported in all modern browsers:
👀 Live Preview
See the Centre Line Symbol in drafting and notation contexts:
🧠 How It Works
Hexadecimal Code
℄ uses the Unicode hexadecimal value 2104 to display the Centre Line Symbol.
Decimal HTML Code
℄ uses the decimal Unicode value 8452 to display the same character.
CSS Entity
\2104 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.
Same visual result
All three methods produce the Centre Line glyph: ℄. Unicode U+2104 sits in the Letterlike Symbols block (U+2100–U+214F).
Use Cases
The Centre Line Symbol (℄) commonly appears in:
Engineering drawings marking centre lines of holes, cylinders, and symmetric features.
CAD documentation, architectural blueprints, and manufacturing drawings.
Dimensioning documents, machining instructions, and quality control references.
Drafting courses, engineering drawing tutorials, and technical notation guides.
Web-based diagram editors and technical illustration apps showing centre lines.
Technical wikis, product manuals, and engineering references with drawing notation.
Provide text alternatives (“centre line”) or ARIA labels in diagrams for screen readers.
💡 Best Practices
Do
- Use
℄or℄consistently in technical HTML - Pair the symbol with descriptive labels in drawing legends
- Choose fonts that support Letterlike Symbols (U+2100–U+214F)
- Use CSS
\2104for icon-style labels in pseudo-elements - Add accessible descriptions when the symbol appears in diagrams
Don’t
- Confuse ℄ (centre line, U+2104) with ¢ (cent, U+00A2)
- Put CSS escape
\2104inside HTML text nodes - Assume every font renders U+2104 identically on all devices
- Use the symbol without context in instructional material
- Mix entity styles randomly in one file
Key Takeaways
Two HTML references both render ℄
℄ ℄For CSS stylesheets, use the escape in the content property
\2104U+2104 CENTRE LINE SYMBOL — drafting notation
Letterlike Symbols block — not a currency symbol
No named HTML entity — use numeric references only
❓ Frequently Asked Questions
℄ (hex), ℄ (decimal), or \2104 in CSS content. All produce ℄. There is no named HTML entity.U+2104 (CENTRE LINE SYMBOL). Letterlike Symbols block (U+2100–U+214F). Hex 2104, decimal 8452. Denotes centre lines in technical and engineering drawings.℄ or ℄) go directly in markup. The CSS escape \2104 is used in stylesheets, typically in the content property of pseudo-elements.℄, ℄, or \2104 in CSS. Do not confuse with the Cent Sign ¢ (U+00A2).Explore More HTML Entities!
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