dominant-baselineBaseline · Widely available
The dominant-baseline CSS property sets the specific baseline used to align an elements's text and inline-level contents.
Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Jan 15, 2020. Widely available since Jul 15, 2022.
Browser support
DesktopChrome
1+Supportedsince Dec 11, 2008
Current: 155Edge
12–18Not supported
79+Supportedsince Jan 15, 2020
Current: 154Firefox
1+Supportedsince Nov 9, 2004
Current: 157Safari
1–3.1Not supported
4+Supportedsince Jun 8, 2009
Current: 27MobileChrome Android
18+Supportedsince Jun 27, 2012
Current: 155Firefox Android
4+Supportedsince Mar 29, 2011
Current: 157Safari iOS
1–3Not supported
3.2+Supportedsince Apr 3, 2010
Current: 27How to use
This feature is Baseline widely available — use it freely, no fallback needed.
Example
Full syntax and examples are on MDN: dominant-baseline.
Feature detection
CSS · check before using
@supports (dominant-baseline: initial) {
/* styles that rely on dominant-baseline */
}
/* or in JavaScript */
if (CSS.supports("dominant-baseline", "initial")) {
// use it
}Documentation (MDN)
Specification
Sub-features
Support for each part of the feature (8). The overall table above shows when the whole feature works.
| Sub-feature | Chrome | Edge | Firefox | Safari | Chrome Android | Firefox Android | Safari iOS |
|---|---|---|---|---|---|---|---|
| dominant-baseline | 1 | 79 | 1 | 4 | 18 | 4 | 3.2 |
| dominant-baseline.alphabetic | 1 | 79 | 1 | 4 | 18 | 4 | 3.2 |
| dominant-baseline.auto | 1 | 79 | 1 | 4 | 18 | 4 | 3.2 |
| dominant-baseline.central | 1 | 79 | 1 | 4 | 18 | 4 | 3.2 |
| dominant-baseline.hanging | 1 | 79 | 1 | 4 | 18 | 4 | 3.2 |
| dominant-baseline.ideographic | 1 | 79 | 1 | 4 | 18 | 4 | 3.2 |
| dominant-baseline.mathematical | 1 | 79 | 1 | 4 | 18 | 4 | 3.2 |
| dominant-baseline.middle | 1 | 79 | 1 | 4 | 18 | 4 | 3.2 |