HTML Entity for Strictly Equivalent To (≣)

Beginner

5 min read

Updated: Sep 2026

1 example

Unicode U+2263

HTML Entity for strictly equivalent to (U+2263) tutorial illustration

Definition

What Is Strictly Equivalent To?

Strictly equivalent to (≣) is the Unicode character at U+2263 in Mathematical Operators. Official name: STRICTLY EQUIVALENT TO. It is a relation symbol used in logic, algebra, and formal proofs.

Remember

Character     ≣
Unicode       U+2263
Hex entity    &#x2263;
Decimal       &#8803;
CSS escape    \2263
Named entity  (none)
Not the same  = · ≡ · ≍

Prefer ≣ or ≣ in HTML markup. You can also type ≣ in UTF-8. There is no named entity.

Reference

Quick Reference

One table for every form you will actually use.

Form	Code	Where it goes
Direct character	`≣`	HTML text (UTF-8)
Hex entity	`≣`	HTML markup (preferred)
Decimal entity	`≣`	HTML markup
CSS escape	`\2263`	Stylesheet `content`
Named entity	—	Not defined in HTML5
Identical to (related)	`&equiv;` (≡, U+2261)	Identical / congruence-style relation

When to Use Which

Situation	Use
Strictly equivalent relation	`≣` or `≣`
Identical / congruent	≡ / `&equiv;`
Equivalent to (asymptotic style)	≍ / `&asympeq;`
Ordinary equality	Type `=`
Looking for a named form	Does not exist — use numeric form
Generated text via `::before` / `::after`	`content: "\2263"`

See it

Live Preview

Strictly equivalent to rendered in a relation and next to related marks.

Example A ≣ B

Large glyph ≣

Compared ≣ ≡ ≍ =

With entities Hex: ≣ | Decimal: ≣

Code

Complete HTML Example

One page that shows Strictly Equivalent To with hex, decimal, CSS escape, and a typed character. Use View Output or open the live editor.

Hex + Decimal + CSS + Typed

Four ways to produce ≣, plus a short relation example.

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Strictly Equivalent To (≣) in HTML</title>
  <style>
    #point::after {
      content: "\2263";
    }
  </style>
</head>
<body>
  <p>Using Hex Code: &#x2263;</p>
  <p>Using HTML Code: &#8803;</p>
  <p id="point">Using CSS Entity: </p>
  <p>Typed directly: ≣</p>
  <p>Relation: A ≣ B</p>
</body>
</html>

Try It Yourself

How It Works

1. Hex: U+2263 → ≣ in HTML. The browser turns it into ≣.

2. Decimal: same code point as 8803 → ≣. Same result as hex.

3. CSS: use \2263 in content (not an HTML entity). #point::after appends that ≣ after the paragraph text.

4. Typed / relation: paste ≣ in UTF-8, or write A ≣ B for a short logic/math example.

Pitfalls & Tips

Common mistakes when working with Strictly Equivalent To.

Named?

No named entity

HTML5 does not define a named entity for U+2263. Use ≣ or ≣.

≡

Not &equiv;

&equiv; is identical to (≡, U+2261). Strictly equivalent to is a different code point (U+2263).

Not ordinary equals

Typing = is U+003D. Prefer U+2263 when the strictly-equivalent relation is required.

Fonts

Math font coverage

Some UI fonts omit Mathematical Operators. Prefer a math-capable font for display.

CSS vs HTML

Do not mix escapes

\2263 belongs in CSS strings. ≣ / ≣ belong in HTML.

Semicolon

End numeric references

Always finish with ; — write ≣, not &#8803.

Compatibility

Browser Support

Strictly equivalent to (U+2263) and its entity forms (≣, ≣, CSS \\2263) are supported in all mainstream browsers. Visible glyphs depend on math font coverage.

✓ Universal support

Strictly Equivalent To (≣)

Encode with 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+2263 / entities Full support

Bottom line: Prefer ≣ or ≣ in HTML. Use \\2263 only inside CSS content. There is no named entity.

Remember

Key Takeaways

Unicode: this mark is U+2263 (decimal 8803) — glyph ≣.
HTML: use ≣ or ≣ — no named entity; typing ≣ also works.
CSS: use \2263 inside content for generated text.
Meaning: ≣ = strictly equivalent — not =, not &equiv;, not &asympeq;.

One line: U+2263 → ≣ / ≣ / CSS \2263.

Frequently Asked Questions

How do I display ≣ in HTML?

Use ≣ (hex), ≣ (decimal), type ≣ directly in UTF-8, or the CSS escape \2263 in content. There is no named HTML entity for U+2263.

What is the Unicode value for this mark?

U+2263 (STRICTLY EQUIVALENT TO). Hex 2263, decimal 8803. It belongs to Mathematical Operators (U+2200–U+22FF).

Is there a named HTML entity for U+2263?

No. HTML5 does not define a named entity for this character. Use numeric forms ≣ or ≣. Related: &equiv; is identical to (U+2261).

When should I use U+2263?

Use it in logic, algebra, and formal proofs when you need the strictly-equivalent relation. Prefer = for ordinary equality, &equiv; for identical/congruent, and &asympeq; for equivalent to (U+224D).

What is the difference between HTML code and CSS entity for U+2263?

HTML entities (≣ or ≣) go in markup. The CSS escape \2263 goes in stylesheet strings (usually content on ::before/::after).

Is ≣ the same as &equiv; or =?

No. ≣ is U+2263 (strictly equivalent to). &equiv; is ≡ (U+2261, identical to). = is U+003D (equals sign).

Did you know?

Strictly equivalent to is Unicode U+2263 (decimal 8803) — glyph ≣ in Mathematical Operators. Official name: STRICTLY EQUIVALENT TO. HTML5 has no named entity — use ≣ or ≣. Identical to is &equiv; (U+2261); equivalent to is &asympeq; (U+224D).

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Learn the HTML entity for subgroup equal to (⊴).

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Mari Selvan M P 🔗

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