unset - CSS: Cascading Style Sheets | MDN (original) (raw)

Baseline

Widely available

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

<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

.foo {
  color: blue;
}

.bar {
  color: green;
}

p {
  color: red;
}

.bar p {
  color: unset;
}

Result

Border

border is a non-inherited property.

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

div {
  border: 1px solid green;
}

p {
  border: 1px solid red;
}

.bar p {
  border-color: unset;
}

Result

Specifications

Browser compatibility

See also

• Use the initial keyword to set a property to its initial value.
• Use the inherit keyword to make an element's property the same as its parent.
• Use the revert keyword to reset a property to the value established by the user-agent stylesheet (or by user styles, if any exist).
• Use the revert-layer keyword to reset a property to the value established in a previous cascade layer.
• The all property lets you reset all properties to their initial, inherited, reverted, or unset state at once.