HTML Entity for Combining Square Below (̻)

What You'll Learn
How to display the Combining Square Below (̻) in HTML and CSS. This character is U+033B (COMBINING SQUARE BELOW) in the Combining Diacritical Marks block (U+0300–U+036F)—a nonspacing mark that attaches below the preceding base character. For example, a̻ renders as a̻.
There is no named HTML entity for U+033B. Use ̻, ̻, or \033B in CSS content. Do not confuse this combining mark with math symbols like square cap U+2293 (⊓).
⚡ Quick Reference — Combining Square Below
U+033BCombining Diacritical Marks
̻Hexadecimal reference
̻Decimal reference
—Use numeric codes only
Name Value
──────────── ──────────
Unicode U+033B
Hex code ̻
HTML code ̻
Named entity (none)
CSS code \033B
Type Combining mark (below)
Example a̻ → a̻
Block Combining Diacritical Marks (U+0300–U+036F)Complete HTML Example
A simple example showing ̻ using hexadecimal and decimal references, combining with a base letter, plus a CSS content escape (no named entity):
<!DOCTYPE html>
<html>
<head>
<style>
#point::after{
content: "\033B";
}
</style>
</head>
<body>
<p>Square below (hex): ̻</p>
<p>Square below (decimal): ̻</p>
<p>With letter a: a̻</p>
<p id="point">Square below (CSS): </p>
</body>
</html>🌐 Browser Support
The Combining Square Below (̻) is supported in modern browsers when paired with a base character:
👀 Live Preview
See the combining square below in linguistic contexts:
🧠 How It Works
Hexadecimal Code
̻ references code point U+033B using hex digits 033B. Place immediately after the base character.
Decimal HTML Code
̻ is the decimal equivalent (827) for the same combining mark.
CSS Entity
\033B is the CSS escape for U+033B, used in the content property of pseudo-elements.
Combining result
Place after a base letter: a̻. Unicode U+033B in Combining Diacritical Marks (U+0300–U+036F). No named entity.
Use Cases
The Combining Square Below (̻) commonly appears in:
Dictionaries and language docs with specialized diacritical marks.
IPA and research notation modifying base characters.
Scholarly content on orthography and phonology.
Tutorials explaining combining diacritical marks.
Character-set and Unicode encoding references.
Examples showing numeric references for U+033B.
💡 Best Practices
Do
- Place
̻or̻immediately after the base letter - Use
a̻pattern for combined glyphs like a̻ - Set
<meta charset="utf-8">for reliable rendering - Pick hex or decimal consistently across a document
- Test with fonts that support Combining Diacritical Marks
Don’t
- Write U+0033B—the correct notation is U+033B
- Use CSS
\0033Bwith extra padding—prefer\033B - Confuse U+033B (combining mark) with U+2293 (square cap ⊓)
- Expect a named HTML entity for U+033B
- Put CSS escape
\033Bin HTML text nodes without a base character
Key Takeaways
Three ways to reference U+033B in HTML and CSS
̻ ̻For CSS stylesheets, use \033B in the content property
U+033B COMBINING SQUARE BELOW — attaches below base letters
No named entity—use numeric references after the base character
Previous: Spherical Angle Next: Square Cap
❓ Frequently Asked Questions
̻ (hex), ̻ (decimal), or \033B in CSS content. Place the mark immediately after the base letter (e.g. a̻). There is no named HTML entity.U+033B (COMBINING SQUARE BELOW). Combining Diacritical Marks (U+0300–U+036F). Hex 033B, decimal 827.̻ or ̻) goes in markup after the base character. CSS entity \033B is used in stylesheets, typically in the content property of pseudo-elements like ::before or ::after.Explore More HTML Entities!
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