HTML Entity for Down Right Diagonal Ellipsis (⋱)

Beginner

5 min read

Updated: Sep 2026

1 example

Unicode U+22F1

HTML Entity for down right diagonal ellipsis (U+22F1) tutorial illustration

Definition

What Is Down Right Diagonal Ellipsis?

Down right diagonal ellipsis (⋱) is the Unicode character at U+22F1 in Mathematical Operators. Official name: DOWN RIGHT DIAGONAL ELLIPSIS. It is three dots running down-right — useful for matrix diagonals and math continuation.

Remember

Character     ⋱
Unicode       U+22F1
Named entity  &dtdot;
Hex entity    &#x22F1;
Decimal       &#8945;
CSS escape    \22F1
Not the same  ⋰ (&utdot;) · ⋯ (&ctdot;) · … (&hellip;)

Prefer &dtdot; in HTML markup. You can also type ⋱ in UTF-8, or use numeric forms when needed.

Reference

Quick Reference

One table for every form you will actually use.

Form	Code	Where it goes
Named entity	`&dtdot;`	HTML markup (preferred)
Direct character	`⋱`	HTML text (UTF-8)
Hex entity	`⋱`	HTML markup
Decimal entity	`⋱`	HTML markup
CSS escape	`\22F1`	Stylesheet `content`
Opposite diagonal	`&utdot;` (⋰, U+22F0)	Up-right diagonal ellipsis

When to Use Which

Situation	Use
Down-right diagonal dots	`&dtdot;` or type `⋱`
Up-right diagonal dots	`&utdot;`
Midline horizontal math dots	`&ctdot;`
Vertical / text ellipsis	`&vellip;` / `…`
Generated text via `::before` / `::after`	`content: "\22F1"`

See it

Live Preview

Diagonal ellipsis rendered alone, in notation, and compared with related marks.

Glyph ⋱

Large glyph ⋱

Notation a₁₁ ⋱ a_nn

Compared ⋱ ⋰ ⋯ ⋮ …

With entities Named: ⋱ | Hex: ⋱ | Decimal: ⋱

Code

Complete HTML Example

One page that shows Down Right Diagonal Ellipsis 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>Down Right Diagonal Ellipsis (U+22F1) in HTML</title>
  <style>
    #point::after {
      content: "\22F1";
    }
  </style>
</head>
<body>
  <p>Built with Named: &dtdot;</p>
  <p>Built with Hex: &#x22F1;</p>
  <p>Built with Decimal: &#8945;</p>
  <p id="point">Built with CSS: </p>
  <p>Typed: ⋱</p>
  <p>Label: Diagonal &dtdot;</p>
</body>
</html>

Try It Yourself

How It Works

1. Named: &dtdot; is the preferred HTML5 name for U+22F1 → ⋱.

2. Hex / decimal: ⋱ and ⋱ insert the same code point.

3. CSS: use \22F1 in content (not an HTML entity). #point::after appends ⋱.

4. Typed: paste ⋱ in a UTF-8 document, or pair it with a label like Diagonal &dtdot;.

Pitfalls & Tips

Common mistakes when working with Down Right Diagonal Ellipsis.

Direction

Not &utdot;

&utdot; is up-right (U+22F0). &dtdot; is down-right (U+22F1).

…

Not …

… is the ordinary text ellipsis (…). Use &dtdot; for the math diagonal form.

⋯

Not &ctdot;

&ctdot; is midline horizontal dots (⋯). It is not diagonal.

CSS vs HTML

Do not mix escapes

\22F1 belongs in CSS strings. &dtdot; / ⋱ belong in HTML.

Fonts

Math font coverage

Some fonts omit Mathematical Operators glyphs. Prefer a font with solid math coverage.

a11y

Add accessible text

A lone diagonal ellipsis can be unclear to screen readers. Pair it with visible text or an aria-label.

Semicolon

End references

Always finish entities with ; — write &dtdot;, not &dtdot.

Compatibility

Browser Support

Down right diagonal ellipsis (U+22F1) and its entity forms (&dtdot;, ⋱, ⋱, CSS \\22F1) are supported in all mainstream browsers. Visible glyphs depend on Mathematical Operators font coverage.

✓ Universal support

Down Right Diagonal Ellipsis (⋱)

Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.

100% Browser coverage

Google Chrome Supported

Yes

Microsoft Edge Supported

Yes

Mozilla Firefox Supported

Yes

Apple Safari Supported

Yes

Opera Supported

Yes

Internet Explorer All versions

Yes

U+22F1 / &dtdot; Full support

Bottom line: Prefer &dtdot; in HTML. Use ⋱ / ⋱ when numeric form is required, and \\22F1 only inside CSS content.

Remember

Key Takeaways

Unicode: down-right diagonal ellipsis is U+22F1 (decimal 8945) — glyph ⋱.
HTML: prefer &dtdot; (or ⋱ / ⋱).
CSS: use \22F1 inside content for generated text.
Direction: &dtdot; (down-right) ≠ &utdot; (up-right) ≠ ….

One line: U+22F1 → &dtdot; / ⋱ / CSS \22F1.

Frequently Asked Questions

How do I display ⋱ in HTML?

Use &dtdot; (named), ⋱ (hex), ⋱ (decimal), type ⋱ directly in UTF-8, or the CSS escape \22F1 in content. Prefer &dtdot; in normal HTML.

What is the Unicode value for this mark?

U+22F1 (DOWN RIGHT DIAGONAL ELLIPSIS). Hex 22F1, decimal 8945. It belongs to the Mathematical Operators block (U+2200–U+22FF).

Is there a named HTML entity for U+22F1?

Yes. Use &dtdot;. Numeric forms ⋱ and ⋱ also work. The opposite diagonal uses &utdot; (U+22F0).

When should I use U+22F1?

Use it in math or matrices when a diagonal pattern continues down-right. Prefer &utdot; for up-right diagonal, &ctdot; for midline horizontal, and … for a plain text ellipsis.

What is the difference between HTML code and CSS entity for U+22F1?

HTML entities (&dtdot;, ⋱, or ⋱) go in markup. The CSS escape \22F1 goes in stylesheet strings (usually content on ::before/::after).

Is &dtdot; the same as &utdot; or …?

No. &dtdot; is ⋱ (U+22F1, down-right). &utdot; is ⋰ (U+22F0, up-right). … is … (U+2026), a horizontal text ellipsis.

Did you know?

Down right diagonal ellipsis is Unicode U+22F1 (decimal 8945) — glyph ⋱ (DOWN RIGHT DIAGONAL ELLIPSIS) in Mathematical Operators. HTML5 names it &dtdot;. The opposite diagonal is &utdot; (⋰). Midline horizontal is &ctdot; (⋯). Vertical is &vellip; (⋮).

Next: Down Tack

Learn the HTML entity for down tack (U+22A4).

Down Tack tutorial →

About the author

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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