r | CSS CSS Properties

Sets the radius of an SVG <circle> element. This property allows you to control the size of circles directly from your CSS, which is great for hover effects or animations.

Quick example

circle.dot {
  fill: var(--accent);
  /* Sets the radius to 10 pixels */
  r: 10px;
  transition: r 0.3s ease;
}

circle.dot:hover {
  r: 15px;
}

Quick facts

Initial value

0

Inherited

Applies to

SVG <circle> elements

Animation type

byComputedValueType

r Browser Support

Widely available Since 2020 96% global usage

This feature is well established and works across many devices and browser versions. It has been available across browsers since 2020.

Safe to use without fallbacks.

View on caniuse.com → View on MDN → View on webstatus.dev → Learn more about Baseline →

43+

69+

79+