unset
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2016.
The unset CSS keyword resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not. In other words, it behaves like the inherit keyword in the first case, when the property is an inherited property, and like the initial keyword in the second case, when the property is a non-inherited property.
unset can be applied to any CSS property, including the CSS shorthand property all.
Examples
Color
color is an inherited property.
HTML
html
<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>
CSS
css
.foo {
color: blue;
}
.bar {
color: green;
}
p {
color: red;
}
.bar p {
color: unset;
}
Result
Border
border is a non-inherited property.
HTML
html
<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 a black border (initial default, not inherited).</p>
</div>
CSS
css
div {
border: 1px solid green;
}
p {
border: 1px solid red;
}
.bar p {
border-color: unset;
}
Result
Specifications
| Specification |
|---|
| CSS Cascading and Inheritance Level 4 # inherit-initial |
Browser compatibility
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See also
- Use the
initialkeyword to set a property to its initial value. - Use the
inheritkeyword to make an element's property the same as its parent. - Use the
revertkeyword to reset a property to the value established by the user-agent stylesheet (or by user styles, if any exist). - Use the
revert-layerkeyword to reset a property to the value established in a previous cascade layer. - The
allproperty lets you reset all properties to their initial, inherited, reverted, or unset state at once.