font-synthesis
The font-synthesis
CSS property controls which missing typefaces, bold, italic, or small-caps, may be synthesized by the browser.
Syntax
font-synthesis: none;
font-synthesis: weight;
font-synthesis: style;
font-synthesis: small-caps;
font-synthesis: weight style small-caps;
/* Global values */
font-synthesis: inherit;
font-synthesis: initial;
font-synthesis: revert;
font-synthesis: unset;
Values
none
-
Indicates that no bold, italic, nor small-caps typeface may be synthesized.
weight
-
Indicates that a bold typeface may be synthesized if needed.
style
-
Indicates that an italic typeface may be synthesized if needed.
small-caps
-
Indicates that a small-caps typeface may be synthesized if needed.
Description
Most standard Western fonts include italic and bold variants, and some fonts include a small-caps variant. However, many fonts do not. Fonts used for Chinese, Japanese, Korean and other logographic scripts tend not to include these variants, and synthesizing them may impede the legibility of the text. In these cases, it may be desirable to switch off the browser's default font-synthesis.
Formal definition
Initial value | weight style |
---|---|
Applies to | all elements. It also applies to ::first-letter and ::first-line . |
Inherited | yes |
Computed value | as specified |
Animation type | discrete |
Formal syntax
Examples
Disabling font synthesis
HTML
<em class="syn">Synthesize me! 站直。</em>
<br/>
<em class="no-syn">Don't synthesize me! 站直。</em>
CSS
em {
font-weight: bold;
}
.syn {
font-synthesis: style weight small-caps;
}
.no-syn {
font-synthesis: none;
}
Result
Specifications
Specification |
---|
CSS Fonts Module Level 4 # font-synthesis |
Browser compatibility
BCD tables only load in the browser