CSS Outline Generator
Create CSS outlines with custom width, style, color, and offset.
See how outline-offset creates space between element and outline.
Negative values move the outline inside the element. This is what makes outline different from border.
Note: In modern browsers, outlines follow border-radius. In older browsers, outlines were always rectangular.
outline: 3px solid #3b82f6; outline-offset: 4px; border-radius: 12px;
Outline vs Border: Key Differences
Outline
- +Does NOT affect layout or element size
- +Can have offset from element edge
- +Great for focus states (accessibility)
- -Cannot have different sides styled separately
Border
- +Part of box model, affects layout
- +Each side can be styled differently
- +Always follows border-radius
- -No offset property available
Pro tip: Use outline for focus indicators and hover effects that shouldn't shift your layout. Use outline-offset to create space between the element and its outline, creating a "glow ring" effect.
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