CSSKit

CSS Outline Generator | Outline Style Editor - CSSKit

Free CSS outline generator. Customize outline width, style, color, and offset with live preview. Compare outline vs border side by side.

3px
0px
Element

Outline (does not affect layout)

Before
Outline
After

Border (takes up space)

Before
Border
After
.element {
  outline: 3px solid #3b82f6;
}

What is CSS Outline Generator?

CSS Outline Generator is a free online tool for creating and customizing CSS outline styles. Configure outline width, style, color, and offset with a live preview, and compare outlines with borders to understand the differences.

How to Use CSS Outline Generator

Set the outline width using the slider. Select an outline style from the dropdown (solid, dashed, dotted, double, groove, ridge, etc.). Pick the outline color with the color picker. Adjust the outline-offset to move the outline away from or inside the element. Compare with a border preview to see the differences. Copy the CSS code.

How CSS Outline Generator Works

The tool provides controls for outline-width, outline-style, outline-color, and outline-offset. The live preview shows the outline applied to a sample element. A comparison view shows the difference between outline and border, highlighting that outlines do not affect layout and can be offset from the element edge.

Common Use Cases

  • Designing focus indicator styles for accessibility
  • Creating decorative outline effects
  • Building custom focus-visible styles
  • Comparing outline vs border behavior
  • Creating offset outline decorations

Frequently Asked Questions

What is the difference between outline and border?▼

Outlines do not take up space and do not affect the element's dimensions or layout. They are drawn outside the border edge. Outlines can also be offset using outline-offset, while borders cannot.

What is outline-offset?▼

outline-offset sets the distance between the outline and the border edge of the element. Positive values move the outline outward, negative values move it inward (overlapping the element).

Why is outline important for accessibility?▼

Outlines are the default focus indicator in browsers. Custom outline styles help make focus states visible for keyboard users while matching your design. Never remove outlines without providing an alternative focus indicator.

Can I set outline on individual sides?▼

No, unlike border, CSS outline applies to all sides equally. You cannot set different outline styles per side. For side-specific styling, use border or box-shadow instead.

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