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The unicode-range CSS descriptor sets the specific range of characters to be used from a font defined by @font-face and made available for use on the current page. If the page doesn't use any character in this range, the font is not downloaded; if it uses at least one, the whole font is downloaded.

The purpose of this descriptor is to allow the font resources to be segmented so that a browser only needs to download the font resource needed for the text content of a particular page. For example, a site with many localizations could provide separate font resources for English, Greek and Japanese. For users viewing the English version of a page, the font resources for Greek and Japanese fonts wouldn't need to be downloaded, saving bandwidth.

Related at-rule@font-face
Initial valueU+0-10FFFF
Mediaall
Computed valueas specified
Canonical orderorder of appearance in the formal grammar of the values

Syntax

/* <unicode-range> values */
unicode-range: U+26;               /* single codepoint */
unicode-range: U+0-7F;
unicode-range: U+0025-00FF;        /* codepoint range */
unicode-range: U+4??;              /* wildcard range */
unicode-range: U+0025-00FF, U+4??; /* multiple values */

Values

single codepoint
A single Unicode character code point, for example U+26.
codepoint range
A range of Unicode code points. So for example, U+0025-00FF means include all characters in the range U+0025 to U+00FF.
wildcard range
A range of Unicode code points containing wildcard characters, that is using the '?' character, so for example U+4?? means include all characters in the range U+400 to U+4FF.

Formal syntax

<unicode-range>#

Examples

We create a simple HTML containing a single <div> element, including an ampersand, that we want to style with a different font. To make it obvious, we will use a sans-serif font, Helvetica, for the text, and a serif font, Times New Roman, for the ampersand.

<div>Me & You = Us</div>

In the CSS, you can see that we are in effect defining a completely separate @font-face that only includes a single character in it, meaning that only this character will be styled with this font. We could also have done this by wrapping the ampersand in a <span> and applying a different font just to that, but that is an extra element and rule set.

@font-face {
  font-family: 'Ampersand';
  src: local('Times New Roman');
  unicode-range: U+26;
}

div {
  font-size: 4em;
  font-family: Ampersand, Helvetica, sans-serif;	
}

Reference result

What the example should looks like if your browser supports it.

Live result

Specifications

Specification Status Comment
CSS Fonts Module Level 3
The definition of 'unicode-range' in that specification.
Candidate Recommendation Initial definition

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
unicode-rangeChrome Full support 1Edge Full support 12Firefox Full support 36IE Full support 9Opera Full support YesSafari Full support 3.2WebView Android Full support ≤37Chrome Android Full support 18Firefox Android Full support 36Opera Android Full support YesSafari iOS Full support 3Samsung Internet Android Full support 1.0

Legend

Full support  
Full support

See Also

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최종 변경자: estelle,