Эта статья нуждается в техническом обзоре. Как вы можете помочь.
Наши волонтёры ещё не перевели данную статью на Русский. Присоединяйтесь к нам и помогите закончить эту работу!
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.
Examples
Color
.foo { color: blue; } .bar { color: green; } p { color: red; } .bar p { color: unset; }
<p>This text is red</p> <div class="foo"> <p>This text is also red</p> </div> <div class="bar"> <p>This text is green (default inherited value)</p> </div>
Result:
Border
div { border: 1px solid green; } p { border: 1px solid red; } .bar p { border-color: unset; }
<p>This text has a red border</p> <div> <p>This text has a red border</p> </div> <div class="bar"> <p>This text has has a black border (initial default, not inherited)</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+ | 28 | 9.1 |
Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | No support | 27.0 (27) | No support | No support | 9.3 |
See also
The CSS-wide property values: initial
, inherit
, unset
, and revert
.