HTML Entity for Element With Two Horizontal Stroke (⋹)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+22F9
HTML entity for Element With Two Horizontal Stroke (U+22F9) — hex, decimal, named, and CSS tutorial

What You'll Learn

How to display the Element With Two Horizontal Stroke (⋹) in HTML using hexadecimal, decimal, named entity, and CSS escape methods. This character is U+22F9 (ELEMENT OF WITH TWO HORIZONTAL STROKES) in the Mathematical Operators block (U+2200–U+22FF)—a variant of the element-of symbol with two horizontal strokes.

Render it with ⋹, ⋹, the named entity ⋹, or CSS escape \22F9. Do not confuse ⋹ (U+22F9, this symbol) with ∈ (U+2208, standard element of ∈).

⚡ Quick Reference — Element With Two Horizontal Stroke

Unicode U+22F9

Mathematical Operators

Hex Code ⋹

Hexadecimal reference

HTML Code ⋹

Decimal reference

Named Entity ⋹

Two-stroke variant (not ∈)

Reference Table
Name           Value
────────────   ──────────
Unicode        U+22F9
Hex code       ⋹
HTML code      ⋹
Named entity   ⋹
CSS code       \22F9
Related        U+2208 = Element of (∈ ∈); U+22F4 = Vertical bar small (⋴)
1

Complete HTML Example

This example demonstrates the Element With Two Horizontal Stroke (⋹) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\22F9";
  }
 </style>
</head>
<body>
<p>Element With Two Horizontal Stroke using Hexadecimal: &#x22F9;</p>
<p>Element With Two Horizontal Stroke using HTML Code: &#8953;</p>
<p>Element With Two Horizontal Stroke using HTML Entity: &isinE;</p>
<p id="point">Element With Two Horizontal Stroke using CSS Entity: </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The Element With Two Horizontal Stroke entity is universally supported in modern browsers:

Chrome 1+
Firefox 1+
Safari 1+
Edge 12+
Opera 4+
Android 4.4+
iOS Safari 1+

👀 Live Preview

See the two-stroke element-of (⋹) compared with standard element-of (∈) and the previous variant in the sequence (⋴):

Inline text Two strokes: x ⋹ S
Large glyph ⋹
vs &isin; &isinE; ⋹   vs   &isin; ∈
vs ⋴ x ⋹ S  ·  x ⋴ S
Numeric refs &#x22F9; &#8953; &isinE;

🧠 How It Works

1

Hexadecimal Code

&#x22F9; uses the Unicode hexadecimal value 22F9 to display this symbol. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#8953; uses the decimal Unicode value 8953 to display the same character.

HTML markup
3

Named Entity

&isinE; is the semantic named entity for U+22F9—not &isin; (U+2208). Easiest to read in set-theory markup.

HTML markup
4

CSS Entity

\22F9 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.

CSS stylesheet
=

Same visual result

All four methods produce the glyph: ⋹. Unicode U+22F9 in the Mathematical Operators block (U+2200–U+22FF).

✅

Use Cases

The Element With Two Horizontal Stroke (⋹) commonly appears in:

📐 Set theory

Specialized set membership or relation notation in proofs.

🎓 Education

Math textbooks, discrete math, and formal logic courses.

📝 Logic

Formal logic and proof writing with operator variants.

💻 CS docs

Type systems and formal semantics in technical writing.

📰 Research

Papers publishing correct element-of variant symbols online.

🌐 Symbol guides

Unicode and entity reference pages for math operators.

💡 Best Practices

Do

  • Use &isinE; for this two-stroke variant (U+22F9)
  • Use &isin; only for standard element of (U+2208)
  • Add aria-label when the symbol carries semantic meaning
  • Use math-friendly fonts for clear glyph rendering
  • Serve pages with UTF-8 (<meta charset="utf-8">)

Don’t

  • Confuse &isinE; (⋹) with &isin; (∈)
  • Use ⋹ when ∈ or another element-of variant is correct
  • Put CSS escape \22F9 in HTML text nodes
  • Assume every font renders two horizontal strokes distinctly
  • Mix entity styles randomly in one file

Key Takeaways

1

Three HTML references plus CSS all render ⋹

&#x22F9; &#8953; &isinE;
2

For CSS stylesheets, use the escape in the content property

\22F9
3

Unicode U+22F9 — element of with two horizontal strokes

4

&isinE; is not the same as &isin; (U+2208)

5

Previous in sequence: ⋴ (vertical bar small, U+22F4)

❓ Frequently Asked Questions

Use &#x22F9; (hex), &#8953; (decimal), &isinE; (named), or \22F9 in CSS content. All produce ⋹.
U+22F9 (ELEMENT OF WITH TWO HORIZONTAL STROKES). Mathematical Operators block (U+2200–U+22FF). Hex 22F9, decimal 8953.
When your notation specifically requires the element-of variant with two horizontal strokes, as opposed to standard ∈ or other related operators in the U+22F0 range.
&isinE; renders ⋹ (U+22F9, two horizontal strokes). &isin; renders ∈ (U+2208, standard element of). They are different characters with different named entities.
HTML entities (&#8953;, &#x22F9;, or &isinE;) go directly in markup. The CSS escape \22F9 is used in stylesheets, typically in the content property of pseudo-elements. Same visual result, different layers of the stack.

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About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
  • Focus Full Stack Development, AWS, and Developer Education

I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

AWS Certified Developer – Associate (Credly)

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Element Of With Vertical Bar At End Horizontal Stroke Small (⋴) Em Dash (—)