CSS outline-offset Property
Sets the space between an outline and the edge of the border
Syntax
outline-offset: <length>;Values
| Value | Description |
|---|---|
| 0 | No offset (default) |
| <length> | Positive or negative offset |
Example
.button:focus-visible {
outline: 2px solid #3b82f6;
outline-offset: 2px;
}Understanding CSS outline-offset
The CSS outline-offset property sets the space between an outline and the edge of the border. As part of the Box Model module in CSS, it is one of the most commonly used properties for controlling the visual presentation of web pages.
You can set outline-offset to values such as 0, <length>, among others. Each value changes how the browser renders the affected element, giving you fine-grained control over your page layout and design. Choosing the right value depends on the specific design requirements of your project.
Common use cases for the outline-offset property include responsive web design, component-based layouts, and creating visually consistent interfaces across devices. It works closely with related properties like outline, outline-width, outline-style to achieve complex styling effects. Understanding how these properties interact helps you write cleaner, more maintainable stylesheets.
Browser support for outline-offset is excellent across all modern browsers including Chrome, Firefox, Safari, and Edge. For older browsers, consider using fallback values or progressive enhancement strategies. The property can also be set dynamically via JavaScript using element.style.outlineOffset or the CSS custom properties (variables) approach for theming.
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