circle()

Baseline Widely available

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

The circle() CSS function defines a circle using a radius and a position. It is one of the <basic-shape> data types.

Try it

Syntax

css

shape-outside: circle(50%);
clip-path: circle(6rem at 12rem 8rem);

Values

<shape-radius>

This may be a <length>, or a <percentage> or values closest-side and farthest-side.

closest-side: Uses the length from the center of the shape to the closest side of the reference box. For circles, this is the closest side in any dimension.
farthest-side: Uses the length from the center of the shape to the farthest side of the reference box. For circles, this is the farthest side in any dimension.

<position>

Moves the center of the circle. May be a <length>, or a <percentage>, or a values such as left. The <position> value defaults to center if omitted.

Formal syntax

<circle()> = 
  circle( <radial-size>? [ at <position> ]? )  

<radial-size> = 
  <radial-extent>               |
  <length [0,∞]>                |
  <length-percentage [0,∞]>{2}  

<position> = 
  [ left | center | right | top | bottom | <length-percentage> ]  |
  [ left | center | right ] && [ top | center | bottom ]  |
  [ left | center | right | <length-percentage> ] [ top | center | bottom | <length-percentage> ]  |
  [ [ left | right ] <length-percentage> ] && [ [ top | bottom ] <length-percentage> ]  

<radial-extent> = 
  closest-corner   |
  closest-side     |
  farthest-corner  |
  farthest-side    

<length-percentage> = 
  <length>      |
  <percentage>

Examples

Basic circle

In the example below, the shape-outside property has a value of circle(50%), which defines a circle on a floated element for the text to flow round.

Specifications

Specification
CSS Shapes Module Level 1 # funcdef-basic-shape-circle

Browser compatibility

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