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CSS outline-offset Property

The outline-offset CSS property is used to define the width of space between outline and border of an element. See property values and examples.

The outline-offset property is used to specify the space between an outline and the border edge of an element. The space between the outline and the element is transparent.

There are three ways in which outlines differ from borders:

  • an outline is a line that is drawn outside of the element’s border edge,
  • an outline can be non-rectangular,
  • an outline doesn’t take up space.

This property is one of the CSS3 properties.

It is not a part of the outline shorthand property. The outline-offset property must be specified separately.

Initial Value0
Applies toAll elements.
InheritedNo.
AnimatableYes. Width of space is animatable.
VersionCSS3
DOM Syntaxobject.style.outlineOffset = "20px";

Syntax

CSS outline-offset syntax

outline-offset: length | initial | inherit;

Example of the outline-offset property:

CSS outline-offset code example

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
    <style>
      div.ex1 {
        margin: 20px;
        border: 2px dotted #000;
        background-color: #8ebf42;
        outline: 4px solid #666;
        outline-offset: 10px;
      }
    </style>
  </head>
  <body>
    <h2>Outline-offset property example</h2>
    <div class="ex1">The outline-offset is 10px</div>
  </body>
</html>
Try it Yourself »

Result

CSS outline-offset values list

In the given example the space between outline and the border is 10px.

Values

ValueDescription
lengthSpace between outline and the border edge of an element. The default value is 0.
initialSets the property to its default value.
inheritInherits the property from its parent element.

Practice

Practice

What can be said about the CSS outline-offset property according to the information provided in the given URL?