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Rightwards Arrow over Leftwards Arrow HTML entity ⇄
⇄ is the HTML entity for Rightwards Arrow over Leftwards Arrow ⇄ (U+21C4). Copy ⇄, ⇄ and the CSS, JavaScript, Python and URL escapes.
- Entity
⇄- Also written
⇄⇄- Code point
- U+21C4
- Unicode name
- RIGHTWARDS ARROW OVER LEFTWARDS ARROW
- Block
- Arrows
- Category
- Other symbol (So)
- Since
- Unicode 1.1
- Defined in
- HTML5
Codes to copy
| HTML named | ⇄Works in HTML; in XML only & < > " ' are predefined. | |
|---|---|---|
| HTML decimal | ⇄Works in HTML and XML. | |
| HTML hex | ⇄Works in HTML and XML. | |
| CSS | content: "\21C4";In a stylesheet, for ::before and ::after. | |
| JavaScript | "\u21C4"Also valid in JSON. | |
| Python | "\u21c4"Python 3 string literal. | |
| Python by name | "\N{RIGHTWARDS ARROW OVER LEFTWARDS ARROW}"Readable alternative using the Unicode name. | |
| URL | %E2%87%84Percent-encoded UTF-8 bytes, for a path or query value. | |
| UTF-8 bytes | E2 87 843 bytes. | |
| UTF-16 | 21C41 code unit, which is what JavaScript length counts. |
When to use it
⇄ writes U+21C4 (Rightwards Arrow over Leftwards Arrow), a symbol from the Unicode Arrows block, encoded since Unicode 1.1. Arrow shapes vary a lot between fonts; when an arrow is the only content of a link or button, give it a text label as well.
The name comes from the HTML5 list (much of it shared with MathML), so it works in every current browser but not in XML or XHTML served as XML, where the numeric reference is the safe choice.
More arrows
⇆Leftwards Arrow over Rightwards Arrow⇂Downwards Harpoon with Barb Rightwards⇇Leftwards Paired Arrows⇁Rightwards Harpoon with Barb Downwards⇈Upwards Paired Arrows⇀Rightwards Harpoon with Barb Upwards⇉Rightwards Paired Arrows↿Upwards Harpoon with Barb Leftwards
All arrows · Every HTML entity · Encode or decode text
Source: the WHATWG HTML Standard list of named character references and the Unicode Character Database (Unicode 18.0).