The unset CSS keyword is the combination of the initial and inherit keywords. Like these two other CSS-wide keywords, it can be applied to any CSS property, including the CSS shorthand all. This keyword resets the property to its inherited value if it inherits from its parent or to its initial value if not. In other words, it behaves like the inherit keyword in the first case and like the initial keyword in the second case.
Example
p {
color: red;
}
#sidebar p {
color: unset;
}
<p>This text is red</p> <div id="sidebar"> <p>This text has the default color</p> </div>
Result
Specifications
| Specification | Status | Comment |
|---|---|---|
| CSS Cascading and Inheritance Level 4 The definition of 'unset' in that specification. |
Working Draft | No changes from Level 3 |
| CSS Cascading and Inheritance Level 3 The definition of 'unset' in that specification. |
Candidate Recommendation | Initial definition |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 41 | 27 (27) | Edge build 10565+ | Not supported | Not supported |
| Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | Not supported | 27.0 (27) | Not supported | Not supported | Not supported |
See also
The CSS-wide property values: initial, inherit, unset, and revert.