The font-weight
attribute refers to the boldness or lightness of the glyphs used to render the text, relative to other fonts in the same font family.
Note: As a presentation attribute, font-weight
can be used as a CSS property. See the css font-weight
property for more information.
As a presentation attribute, it can be applied to any element but it has effect only on the following eight elements: <altGlyph>
, <text>
, <textPath>
, <tref>
, and <tspan>
html, body, svg { height: 100%; }
<svg viewBox="0 0 200 30" xmlns="http://www.w3.org/2000/svg"> <text y="20" font-weight="normal">Normal text</text> <text x="100" y="20" font-weight="bold">Bold text</text> </svg>
Usage notes
Value | normal | bold | bolder | lighter | <number> |
---|---|
Default value | normal |
Animatable | Yes |
For a description of the values, please refer to the CSS font-weight
property.
Specifications
Specification | Status | Comment |
---|---|---|
CSS Fonts Module Level 4 The definition of 'font-weight' in that specification. |
Working Draft | Defines font-weight to accept any numbers between 1 and 1000. |
CSS Fonts Module Level 3 The definition of 'font-weight' in that specification. |
Candidate Recommendation | No change |
Scalable Vector Graphics (SVG) 1.1 (Second Edition) The definition of 'font-weight' in that specification. |
Recommendation | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
font-weight | Chrome ? | Edge ? | Firefox ? | IE ? | Opera ? | Safari ? | WebView Android ? | Chrome Android ? | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
Legend
- Compatibility unknown
- Compatibility unknown