The outline CSS shorthand sets the color, style, and width of a line around an element, outside of the border.

Learning resources on MDN

• outline

Browser support

• Chrome 94 Released on 2021-09-21
• Chrome Android 94 Released on 2021-09-21
• Edge 94 Released on 2021-09-24
• Firefox 88 Released on 2021-04-19
• Firefox for Android 88 Released on 2021-04-19
• Safari 16.4 Released on 2023-03-27
• Safari on iOS 16.4 Released on 2023-03-27

View web-platform-tests results for this feature - View the feature source file (dist) - Edit the feature - Report an issue about this feature