Set each corner radius, review the preview, and copy the CSS.
The CSS Border Radius Generator helps you choose corner rounding and copy the resulting border-radius rule. Adjust the four corner controls, then review the preview before using the CSS in a component.
The border-radius property can use one value for every corner or four values in top-left, top-right, bottom-right, bottom-left order. Keep that order in mind: it differs from the order in which the bottom-corner controls are displayed.
A design might use a radius scale such as 4px, 8px, and 16px. Reusing a small set of values can keep buttons, cards, and inputs consistent.
For a card with top-left and top-right corners at 12px and both bottom corners at 0, the CSS is:
border-radius: 12px 12px 0 0;
In CSS, 50% rounding on a square produces a circle, while a large value such as 999px can create a pill shape. The controls shown here do not include a unit selector or elliptical-radius settings. Edit the copied CSS if your design needs syntax beyond the available controls.
Child content may need clipping with overflow: hidden. If an image extends past a rounded container, consider overflow: hidden, but also check that clipping will not hide content that needs to remain visible.
Test the copied border-radius with the element's actual dimensions and surrounding styles. A preview helps choose the shape; it does not replace checking border-radius in your target layout.
Continue styling with the CSS Box Shadow Generator and CSS Color Converter.
How to Use CSS Border Radius Generator - Set Rounded Corners
Adjust Top Left, Top Right, Bottom Left, and Bottom Right to choose the shape.
Review Preview and CSS Output. Compare the corner order with the component you plan to style.
Use Copy beside CSS Output, then test the rule with your element dimensions and child content.
Set each corner radius, review the preview, and copy the CSS.
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Sep 11, 2026Type:
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