HTML Entity for Element With Two Horizontal Stroke (⋹)
Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+22F9
Definition
What Is Element With Two Horizontal Stroke?
Element with two horizontal stroke (⋹) is the Unicode character at U+22F9 in Mathematical Operators. Official name: ELEMENT OF WITH TWO HORIZONTAL STROKES. It is a membership operator drawn with two horizontal strokes — useful in formal set theory and logic.
Remember
Character ⋹
Unicode U+22F9
Named entity ⋹
Hex entity ⋹
Decimal ⋹
CSS escape \22F9
Not the same ∈ (isin) · ⋲ (disin) · ∉ (notin)
Prefer ⋹ in HTML markup (capital E). You can also use ⋹ / ⋹, or type ⋹ in a UTF-8 document.
Element with two horizontal strokes rendered alone, in a membership statement, and compared with related operators.
Glyph⋹
Large glyph⋹
Membershipx ⋹ S
Compared⋹ ∈ ⋲ ∉
With entitiesNamed: ⋹ | Hex: ⋹ | Decimal: ⋹
Code
Complete HTML Example
One page that shows Element With Two Horizontal Stroke with named, hex, decimal, CSS escape, and a typed character. Use View Output or open the live editor.
Named + Hex + Decimal + CSS + Typed
Five ways to display ⋹ in HTML and CSS.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Element With Two Horizontal Stroke (U+22F9) in HTML</title>
<style>
#point::after {
content: "\22F9";
}
</style>
</head>
<body>
<p>Built with Named: ⋹</p>
<p>Built with Hex: ⋹</p>
<p>Built with Decimal: ⋹</p>
<p id="point">Built with CSS: </p>
<p>Typed: ⋹</p>
<p>Membership: x ⋹ S</p>
</body>
</html>
Built with Named: ⋹
Built with Hex: ⋹
Built with Decimal: ⋹
Built with CSS: ⋹
Typed: ⋹
Membership: x ⋹ S
How It Works
1. Named:⋹ is the preferred HTML5 name for U+22F9 → ⋹ (capital E).
2. Hex:⋹ inserts the same code point. Same visual as named.
3. Decimal: same code point as 8953 → ⋹.
4. CSS: use \22F9 in content (not an HTML entity). #point::after appends ⋹.
5. Typed: paste ⋹ in a UTF-8 document, or write membership like x ⋹ S.
Pitfalls & Tips
Common mistakes when working with Element With Two Horizontal Stroke.
Case
Write ⋹ with capital E
Entity names are case-sensitive. Use ⋹ for U+22F9. Do not confuse it with ∈ (U+2208).
∈
Not plain ∈
U+2208 is the ordinary element-of symbol. U+22F9 adds two horizontal strokes.
⋲
Not a single long stroke
U+22F2 (⋲) has one long stroke. This character has two.
CSS vs HTML
Do not mix escapes
\22F9 belongs in CSS strings. ⋹ / ⋹ / ⋹ belong in HTML.
Fonts
Math font coverage
Some fonts omit less-common Mathematical Operators. Prefer a font with solid math coverage.
a11y
Add accessible text
Screen readers may not expand ⋹ clearly. Prefer full phrases nearby (for example “x is an element of S”) when the meaning matters.
Semicolon
End references
Always finish entities with ; — write ⋹, not &isinE.
Compatibility
Browser Support
Element with two horizontal strokes (U+22F9) and its entity forms (⋹, ⋹, ⋹, CSS \\22F9) are supported in all mainstream browsers. Visible glyphs depend on Mathematical Operators font coverage.
✓ Universal support
Element With Two Horizontal Stroke (⋹)
Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+22F9 / ⋹Full support
Bottom line: Prefer ⋹ in HTML (capital E). Use ⋹ / ⋹ when numeric form is required, and \\22F9 only inside CSS content.
Remember
Key Takeaways
Unicode: element with two horizontal strokes is U+22F9 (decimal 8953) — glyph ⋹.
HTML: prefer ⋹ (capital E).
CSS: use \22F9 inside content for generated text.
Shape: two strokes ≠ plain ∈ ≠ long single ⋲.
One line:U+22F9 → ⋹ / ⋹ / CSS \22F9.
Frequently Asked Questions
Use ⋹ (named), ⋹ (hex), ⋹ (decimal), type ⋹ directly in UTF-8, or the CSS escape \22F9 in content. The named form uses a capital E.
U+22F9 (ELEMENT OF WITH TWO HORIZONTAL STROKES). Hex 22F9, decimal 8953. It belongs to the Mathematical Operators block (U+2200–U+22FF).
Yes. ⋹ is the HTML5 named entity for U+22F9. Entity names are case-sensitive — write ⋹, not &isine;.
Use it when you need the two-stroke membership operator in formal math or logic. Prefer ∈ (U+2208) for ordinary “element of,” and ⋲ when you need the long single-stroke form.
HTML entities (⋹, ⋹, or ⋹) go in markup. The CSS escape \22F9 goes in stylesheet strings (usually content on ::before/::after).
No. U+22F9 is ⋹ (two horizontal strokes). U+2208 is ∈ (plain element of). U+22F2 is ⋲ (long single horizontal stroke).
🤔
Did you know?
Element with two horizontal strokes is Unicode U+22F9 (decimal 8953) — glyph ⋹ (ELEMENT OF WITH TWO HORIZONTAL STROKES) in Mathematical Operators. HTML5 names it ⋹ (capital E — case-sensitive). The plain membership symbol is ∈ (∈, U+2208).
