Double low line (‗) is the Unicode character at U+2017 in the General Punctuation block. Official name: DOUBLE LOW LINE. It is a single spacing glyph that looks like a double underscore at the baseline.
Remember
Character ‗
Unicode U+2017
Hex entity ‗
Decimal ‗
CSS escape \2017
Named entity (none)
Not the same _ · __ · combining U+0333
Prefer ‗ or ‗ in HTML (no named form). You can also type ‗ in UTF-8.
Double Low Line using Hex Code: ‗
Double Low Line using HTML Code: ‗
Double Low Line using CSS Entity: ‗
Typed directly: ‗
Decoration: Section‗Title
How It Works
1. Hex:U+2017 → ‗ in HTML. Preferred when there is no named entity.
2. Decimal: same code point as 8215 → ‗. Same result as hex.
3. CSS: use \2017 in content (not an HTML entity). #point::after appends that ‗ after the paragraph text.
4. Typed / decoration: paste ‗ in UTF-8, or write Section‗Title.
Pitfalls & Tips
Common mistakes when working with Double Low Line.
Name
No named entity
There is no &dblunderline; or similar for U+2017. Use ‗ or ‗.
__
Not two underscores
__ is two ASCII _ (U+005F). ‗ is one character. Prefer __ in code identifiers.
Combining
Not U+0333
Combining double low line (U+0333) goes under a base letter. U+2017 stands alone as spacing punctuation.
CSS vs HTML
Do not mix escapes
\2017 belongs in CSS strings. ‗ / ‗ belong in HTML.
Fonts
Punctuation font coverage
Some fonts omit U+2017 or draw it like =. Prefer a font with General Punctuation coverage for display.
Semicolon
End references
Always finish numeric entities with ; — write ‗, not ‗.
Compatibility
Browser Support
Double low line (U+2017) and its entity forms (‗, ‗, CSS \\2017) are supported in all mainstream browsers. Visible glyphs depend on punctuation font coverage.
✓ Universal support
Double Low Line (‗)
Encode with hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+2017 / entitiesFull support
Bottom line: Prefer ‗ in HTML (no named form). Use ‗ when decimal form is required, and \\2017 only inside CSS content.
Remember
Key Takeaways
Unicode: double low line is U+2017 (decimal 8215) — glyph ‗.
HTML: no named entity — use ‗ / ‗ / type ‗.
CSS: use \2017 inside content for generated text.
Meaning:‗ = one spacing double line — not __, not single _, not combining U+0333.
One line:U+2017 → ‗ / ‗ / CSS \2017 / type ‗.
Frequently Asked Questions
Use ‗ (hex), ‗ (decimal), type ‗ directly in UTF-8, or the CSS escape \2017 in content. There is no named HTML entity for U+2017.
U+2017 (DOUBLE LOW LINE). Hex 2017, decimal 8215. It belongs to the General Punctuation block (U+2000–U+206F).
No. Use numeric forms ‗ or ‗, or type the character in a UTF-8 document.
Use it when you need the single double-low-line glyph (typography, legacy notation, decoration). Prefer two ASCII underscores (__) for identifiers, or U+0333 when you need a combining double line under a letter.
HTML entities (‗ or ‗) go in markup. The CSS escape \2017 goes in stylesheet strings (usually content on ::before/::after).
No. U+2017 is one spacing character (‗). __ is two U+005F underscores. U+0333 is a combining mark that sits under a base letter.
🤔
Did you know?
Double low line is Unicode U+2017 (decimal 8215) — glyph ‗ in the General Punctuation block. There is no HTML5 named entity; use ‗ or ‗. It is one character that looks like a double underscore — not two ASCII _ characters, and not combining U+0333.
