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Four-Per-Em Space HTML entity  
  is the HTML entity for Four-Per-Em Space (U+2005). Copy the decimal   and hex   codes plus CSS, JavaScript, Python and URL escapes.
- Entity
 - Code point
- U+2005
- Unicode name
- FOUR-PER-EM SPACE
- Block
- General Punctuation
- Category
- Space separator (Zs)
- Since
- Unicode 1.1
- Defined in
- HTML5
Codes to copy
| HTML named |  Works in HTML; in XML only & < > " ' are predefined. | |
|---|---|---|
| HTML decimal |  Works in HTML and XML. | |
| HTML hex |  Works in HTML and XML. | |
| CSS | content: "\2005";In a stylesheet, for ::before and ::after. | |
| JavaScript | "\u2005"Also valid in JSON. | |
| Python | "\u2005"Python 3 string literal. | |
| Python by name | "\N{FOUR-PER-EM SPACE}"Readable alternative using the Unicode name. | |
| URL | %E2%80%85Percent-encoded UTF-8 bytes, for a path or query value. | |
| UTF-8 bytes | E2 80 853 bytes. | |
| UTF-16 | 20051 code unit, which is what JavaScript length counts. |
When to use it
  writes U+2005 (Four-Per-Em Space), a space from the Unicode General Punctuation block, encoded since Unicode 1.1. Invisible and space characters are easy to lose when text is copied, so the entity makes them visible in source code.
The name comes from the HTML5 list (much of it shared with MathML), so it works in every current browser but not in XML or XHTML served as XML, where the numeric reference is the safe choice.
It has no visible shape of its own, which is why the box above shows it with a tinted background.
More spaces and invisible characters
 Punctuation Space Em Space Thin Space En Space Hair Space­Soft Hyphen​Zero Width Space Non-Breaking Space
All spaces and invisible characters · Every HTML entity · Encode or decode text
Source: the WHATWG HTML Standard list of named character references and the Unicode Character Database (Unicode 18.0).