HTML Entity for Left Right Double Arrow Vertical Stroke (⤄)
What You'll Learn
How to display the Left Right Double Arrow Vertical Stroke (⤄) in HTML using the named entity, hexadecimal, decimal, and CSS escape methods. This symbol is U+2904 (LEFT RIGHT DOUBLE ARROW WITH VERTICAL STROKE) in the Supplemental Arrows-B block (U+2900–U+297F)—a left-right double arrow with a vertical stroke, used in mathematical notation and technical diagrams for bidirectional relations with a distinct arrow variant.
Render it with ⤄ (named), ⤄, ⤄, or CSS \2904. Do not confuse ⤄ with U+21D4 (⇔, equivalence / ⇔) or U+21CE (⇎, double arrow with stroke / ⇎).
⚡ Quick Reference — Left Right Double Arrow Vertical Stroke
U+2904Supplemental Arrows-B
⤄Hexadecimal reference
⤄Decimal reference
⤄Most readable option
Name Value
──────────── ──────────
Unicode U+2904
Hex code ⤄
HTML code ⤄
Named entity ⤄
CSS code \2904
Meaning Left right double arrow with vertical stroke
Related U+21D4 = left right double arrow (⇔)
U+21CE = double arrow with stroke (⇎)Complete HTML Example
A simple example showing the Left Right Double Arrow Vertical Stroke (⤄) using the named entity, hexadecimal code, decimal HTML code, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\2904";
}
</style>
</head>
<body>
<p>Arrow (hex): ⤄</p>
<p>Arrow (decimal): ⤄</p>
<p>Arrow (named): ⤄</p>
<p id="point">Arrow (CSS): </p>
</body>
</html>🌐 Browser Support
The Left Right Double Arrow Vertical Stroke (⤄) renders in modern browsers when the font supports Supplemental Arrows-B glyphs:
👀 Live Preview
See the Left Right Double Arrow Vertical Stroke (⤄) rendered live in different contexts:
🧠 How It Works
Hexadecimal Code
⤄ uses the Unicode hexadecimal value 2904 for the left right double arrow with vertical stroke. The x prefix indicates hexadecimal format.
Decimal HTML Code
⤄ uses the decimal Unicode value 10500 to display the same character.
Named Entity
⤄ is the semantic named entity — the easiest to read in source HTML and the most self-descriptive option.
CSS Entity
\2904 is used in CSS stylesheets in the content property of pseudo-elements like ::after.
Same visual result
All four methods produce ⤄. Unicode U+2904 is in Supplemental Arrows-B. Previous: Left Right Double Arrow Stroke.
Use Cases
The Left Right Double Arrow Vertical Stroke (⤄) is commonly used in:
Represent bidirectional double-arrow relations with a vertical stroke in equations.
Denote specialized equivalence or reversible relations in formal notation.
Show two-way flow or equivalence between nodes with a distinct arrow style.
Indicate bidirectional mapping or relation with a vertical-stroke variant in specs.
Use in papers for specialized double-arrow notation with vertical stroke.
Display in web-based math editors and equation renderers that support this symbol.
💡 Best Practices
Do
- Use
⤄for readable source markup - Add
aria-labelor surrounding text for accessibility - Verify your font supports Supplemental Arrows-B (U+2904)
- Keep one entity style per project for consistency
- Provide context when the symbol denotes a specialized bidirectional relation
Don’t
- Confuse ⤄ (vertical stroke) with ⇔ (simple double arrow)
- Use CSS
\2904inside HTML text nodes - Assume all fonts render Supplemental Arrows-B glyphs identically
- Mix entity styles randomly in one file
- Use the symbol without explaining its meaning on first use
Key Takeaways
Three HTML references plus CSS all render ⤄
⤄ ⤄ ⤄For CSS, use \2904 in the content property
Unicode U+2904 — LEFT RIGHT DOUBLE ARROW WITH VERTICAL STROKE
Prefer ⤄ for readability—it’s the named HTML entity
Previous: Left Right Double Arrow Stroke Next: Left Right Open Headed Arrow
❓ Frequently Asked Questions
⤄ (hex), ⤄ (decimal), ⤄ (named), or \2904 in CSS content. All four methods render ⤄ correctly.U+2904 (LEFT RIGHT DOUBLE ARROW WITH VERTICAL STROKE). Supplemental Arrows-B block (U+2900–U+297F). Hex 2904, decimal 10500. Shows a left-right double arrow with a vertical stroke.⤄, ⤄, or ⤄) go in markup. The CSS escape \2904 is used in stylesheets, typically on ::before or ::after. Both produce ⤄.⤄ is the named HTML entity for U+2904. You can also use ⤄ (decimal) or ⤄ (hex) and \2904 in CSS.Explore More HTML Entities!
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