CSS outline Property

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h1 {
  outline: 2px dotted black;

p {
  outline: 5px dashed red;

Hello World!


The outline property is a shorthand form that sets all outline properties at once.

This property is a shorthand for the following CSS properties:

Default value:medium invert color
JavaScript syntax:
object.style.outline="outline-width outline-style outline-color|initial|inherit|revert|revert-layer|unset";

Standard Syntax

outline: outline-width outline-style outline-color|initial|inherit|revert|revert-layer|unset;

Browser Support

The numbers in the table specify the first browser version that fully supports the property.


Property Values

The following table describes the values of this property.

Value Description
outline-width Specifies the color of the outline.
outline-style Specifies the style of the outline.
outline-color Specifies the color of the outline.
initial Sets this property to its default value.
inherit If specified, the associated element takes the computed value of its parent element animation-delay property.
revert Reverts the cascaded value of the property from its current value to the value the property
revert-layer Rollback styles to the ones specified in previous cascade layers.
unset Resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not.

Default CSS Property Values

selectors {
  outline: medium invert color;
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