HTML Entity for Tilde Strong (ã)
What You'll Learn
How to display the Tilde Strong combining mark (̃) in HTML using hexadecimal, decimal, and CSS escape methods. This character is U+0303 (COMBINING TILDE) in the Combining Diacritical Marks block (U+0300–U+036F)—a non-spacing mark that places a tilde above the preceding base letter (e.g. a + ̃ = ã).
Render it with ̃, ̃, or CSS escape \0303 placed after a base character. There is no named HTML entity. Do not confuse ̃ with ̴ (overlay) or ̰ (below). Precomposed letters like ã (U+00E3) are an alternative when available.
⚡ Quick Reference — Tilde Strong
U+0303Combining Diacritical Marks
̃Hexadecimal reference
̃Decimal reference
—Use numeric codes only
Name Value
──────────── ──────────
Unicode U+0303
Hex code ̃
HTML code ̃
Named entity (none)
CSS code \0303
Block Combining Diacritical Marks (U+0300–U+036F)
Official name COMBINING TILDE
Usage Place after base letter: ã → ã
Related U+00E3; = a with tilde (ã), U+0334; = Tilde Overlay (a̴)Complete HTML Example
This example shows the Tilde Strong mark on the letter a using hexadecimal, decimal, and CSS content (combining mark follows the base character):
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\0303";
}
</style>
</head>
<body>
<p>Using Hexadecimal: ã</p>
<p>Using HTML Code: ã</p>
<p id="point">Using CSS Entity: a</p>
</body>
</html>🌐 Browser Support
Combining marks render in modern browsers when fonts support Combining Diacritical Marks and proper grapheme composition:
👀 Live Preview
See the Tilde Strong mark combined with base letters:
🧠 How It Works
Hexadecimal Code
̃ uses the Unicode hexadecimal value 0303. Place it immediately after a base character, e.g. ã.
Decimal HTML Code
̃ uses the decimal Unicode value 771 for the same combining mark.
CSS Entity
\0303 is used in CSS stylesheets in the content property of pseudo-elements, following base text in the element.
Combined result
All three methods attach a tilde above the base letter: ã. Unicode U+0303 is a combining character—it never displays meaningfully on its own.
Use Cases
The Tilde Strong combining mark (̃) commonly appears in:
Dictionaries and language reference materials.
IPA transcriptions for nasalized vowels.
Pronunciation guides and Portuguese-style vowels.
Scholarly papers with precise phonetic notation.
Multilingual content and text processing apps.
Scientific documents using diacritical marks.
Unicode and character encoding reference material.
💡 Best Practices
Do
- Place
̃or̃after the base letter - Use UTF-8 encoding in your HTML document
- Consider precomposed characters (e.g. ã) when they exist
- Choose fonts with good combining-mark support
- Test composed glyphs across browsers and devices
Don’t
- Use ̃ alone without a base character
- Confuse above (̃) with overlay (̴) or below (̰) tildes
- Put CSS escape
\0303directly in HTML text nodes - Expect a named HTML entity for U+0303
- Use HTML entities in JS (use
\u0303instead)
Key Takeaways
Two HTML references attach a tilde above the base letter
ã ãFor CSS, use \0303 in the content property after base text
Unicode U+0303 — COMBINING TILDE
Combining mark—always follows a base character (ã = ã)
No named entity—use numeric references or CSS escape
❓ Frequently Asked Questions
̃ (hex) or ̃ (decimal) immediately after a base letter, e.g. ã for ã. For CSS, use \0303 in content on a pseudo-element. There is no named HTML entity.U+0303 (COMBINING TILDE). Combining Diacritical Marks block (U+0300–U+036F). Hex 0303, decimal 771.\0303 goes in stylesheets, typically appended via ::after content. Both combine with a preceding base letter to produce ã.Explore More HTML Entities!
Discover 1500+ HTML character references — diacritics, symbols, and more.
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