:read-only and :read-writeBaseline · Widely available
The :read-only and :read-write CSS pseudo-classes match elements that are read-only or read-write, respectively. For example, :read-only matches <input> and <textarea> elements with the readonly attribute.
Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Jul 28, 2020. Widely available since Jan 28, 2023.
Browser support
DesktopChrome
1+Supportedsince Dec 11, 2008
Current: 155Edge
12–12Not supported
13+Supportedsince Nov 12, 2015
Current: 154Firefox
1–77Not supported
78+Supportedsince Jun 30, 2020
Current: 157Safari
1–3.1Not supported
4+Supportedsince Jun 8, 2009
Current: 27MobileChrome Android
18+Supportedsince Jun 27, 2012
Current: 155Firefox Android
4–68Not supported
79+Supportedsince Jul 28, 2020
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: :read-only.
Feature detection
CSS · check before using
@supports selector(:read-write) {
/* styles that use :read-write */
}
/* or in JavaScript */
if (CSS.supports("selector(:read-write)")) {
// use it
}Documentation (MDN)
Usage share
Sub-features
Support for each part of the feature (2). The overall table above shows when the whole feature works.
| Sub-feature | Chrome | Edge | Firefox | Safari | Chrome Android | Firefox Android | Safari iOS |
|---|---|---|---|---|---|---|---|
| read-only | 1 | 13 | 78 | 4 | 18 | 79 | 3.2 |
| read-write | 1 | 13 | 78 | 4 | 18 | 79 | 3.2 |