CSS Outline Generator
Generate CSS outlines with width, style, offset and rounded-corner preview. Useful for reviewing focus-ring treatments.
Set your values
Adjust the values, then calculate your result.
How to use CSS Outline Generator
- Load the included example or provide your own input and settings.
- Choose the operation and review the supported format below.
- Run the tool, inspect the result, and copy or download it.
Explore an outline without changing layout size
An outline is drawn around an element without taking up the box-model space used by a border. Choose its width, style, color and offset to see how the ring sits around the preview. A positive offset moves it outward; a negative offset draws it inward. The generated class includes a corner radius for the underlying element as well as the outline properties.
Test focus treatments in the real interface
The generator produces a general outline class rather than automatically changing focus styles or removing browser defaults. When adapting it for focus-visible, verify that keyboard users can locate focus on every relevant background and at zoomed sizes. Parent clipping and overflow rules may cut off an outward outline. Do not assume a decorative ring meets accessibility requirements merely because it looks clear in this isolated preview.
Does CSS Outline Generator upload my input?
No. This tool processes input locally in your browser without calling a conversion API.
Is input uploaded?
Processing takes place in your browser. This tool does not send your input or selected files to a conversion API.