coderef

Two-value display propertyBaseline · Widely available

The display CSS property accepts multiple keyword values, such as inline flex or block flow, to explicitly set an element's inner and outer layout mode. Also known as 2-value, multi-keyword, or multiple value syntax.

Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Jul 21, 2023. Widely available since Jan 21, 2026.

How to use ↓Compare browsers

Browser support

DesktopChrome
1–114Not supported
115+Supportedsince Jul 18, 2023
Current: 155
Edge
12–114Not supported
115+Supportedsince Jul 21, 2023
Current: 154
Firefox
1–69Not supported
70+Supportedsince Oct 22, 2019
Current: 157
Safari
1–14.1Not supported
15+Supportedsince Sep 20, 2021
Current: 27
MobileChrome Android
18–114Not supported
115+Supportedsince Jul 21, 2023
Current: 155
Firefox Android
4–68Not supported
79+Supportedsince Jul 28, 2020
Current: 157
Safari iOS
1–14.5Not supported
15+Supportedsince Sep 20, 2021
Current: 27

How to use

This feature is Baseline widely available — use it freely, no fallback needed.

Example

Full syntax and examples are on MDN — see the links below.

Feature detection

CSS · check before using
@supports (display: initial) {
  /* styles that rely on display */
}

/* or in JavaScript */
if (CSS.supports("display", "initial")) {
  // use it
}

Specification