The repeating-radial-gradient()
CSS function creates an image consisting of repeating gradients that radiate from an origin. It is similar to radial-gradient()
and takes the same arguments, but it repeats the color stops infinitely in all directions so as to cover its entire container, similar to repeating-linear-gradient()
. The function's result is an object of the <gradient>
data type, which is a special kind of <image>
.
With each repetition, the positions of the color stops are shifted by a multiple of the dimensions of the basic radial gradient (the distance between the last color stop and the first). Thus, the position of each ending color stop coincides with a starting color stop; if the color values are different, this will result in a sharp visual transition, which can be mitigated by repeating the first color as the last color.
As with any gradient, a repeating radial gradient has no intrinsic dimensions; i.e., it has no natural or preferred size, nor a preferred ratio. Its concrete size will match the size of the element it applies to.
Because <gradient>
s belong to the <image>
data type, they can only be used where <image>
s can be used. For this reason, repeating-radial-gradient()
won't work on background-color
and other properties that use the <color>
data type.
Syntax
/* A gradient at the center of its container, starting red, changing to blue, and finishing green, with the colors repeating every 30px */ repeating-radial-gradient(circle at center, red 0, blue, green 30px); /* An elliptical gradient near the top left of its container, starting red, changing to green and back again, repeating five times between the center and the bottom right corner, and only once between the center and the top left corner */ repeating-radial-gradient(farthest-corner at 20% 20%, red 0, green, red 20%);
Values
<position>
- The position of the gradient, interpreted in the same way as
background-position
ortransform-origin
. If unspecified, it defaults tocenter
. <shape>
- The gradient's shape. The value can be
circle
(meaning that the gradient's shape is a circle with constant radius) orellipse
(meaning that the shape is an axis-aligned ellipse). If unspecified, it defaults toellipse
. <extent-keyword>
- A keyword describing how big the ending shape must be. The possible values are:
-
Keyword Description closest-side
The gradient's ending shape meets the side of the box closest to its center (for circles) or meets both the vertical and horizontal sides closest to the center (for ellipses). closest-corner
The gradient's ending shape is sized so that it exactly meets the closest corner of the box from its center. farthest-side
Similar to closest-side
, except the ending shape is sized to meet the side of the box farthest from its center (or vertical and horizontal sides).farthest-corner
The gradient's ending shape is sized so that it exactly meets the farthest corner of the box from its center. Note: Early implementations of this function included other keywords (
cover
andcontain
) as synonyms of the standardfarthest-corner
andclosest-side
, respectively. Use the standard keywords only, as some implementations have already dropped those older variants. <color-stop>
- A color-stop's
<color>
value, followed by an optional stop position (either a<percentage>
or a<length>
along the gradient's axis). A percentage of0%
, or a length of0
, represents the center of the gradient; the value100%
represents the intersection of the ending shape with the virtual gradient ray. Percentage values in between are linearly positioned on the virtual gradient ray.
Formal syntax
repeating-radial-gradient( [[ circle || <length> ] [at <position>]? , | [ ellipse || [<length> | <percentage> ]{2}] [at <position>]? , | [[ circle | ellipse ] || <extent-keyword> ] [at <position>]? , | at <position> , <color-stop-list> ) \---------------------------------------------------------------/\-----------------/ Contour, size and position of the ending shape List of color stops where <extent-keyword> = closest-corner | closest-side | farthest-corner | farthest-side and <color-stop-list> = [ <linear-color-stop> [, <color-hint>? ]? ]#, <linear-color-stop> and <linear-color-stop> = <color> [ <color-stop-length> ]? and <color-stop-length> = [ <percentage> | <length> ]{1,2} and <color-hint> = [ <percentage> | <length> ]
Examples
Black and white gradient
<div class="radial-gradient"></div>
.radial-gradient { width: 120px; height: 120px; }
.radial-gradient { background: repeating-radial-gradient(black, black 5px, white 5px, white 10px); }
Farthest-corner
<div class="radial-gradient"></div>
.radial-gradient { width: 240px; height: 120px; }
.radial-gradient { background: repeating-radial-gradient(ellipse farthest-corner at 20% 20%, red, black 5%, blue 5%, green 10%); background: repeating-radial-gradient(ellipse farthest-corner at 20% 20%, red 0 5%, green 5% 10%); }
The elliptical gradient will be centered 20% from the top left, and will repeat 10 times between the center and the farthest corner (the bottom right corner). Browsers supporting multi position color stops will display a red and green striped ellipse. Browsers not supporting the syntax yet will see a gradient that goes from red to black and then from blue to green.
Note: Please see Using CSS gradients for more examples.
Specifications
Specification | Status | Comment |
---|---|---|
CSS Images Module Level 3 The definition of 'repeating-radial-gradient()' in that specification. |
Candidate Recommendation | Initial definition. |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
repeating-radial-gradient() | Chrome
Full support
26
| Edge Full support 12 | Firefox
Full support
16
| IE Full support 10 | Opera
Full support
12.1
| Safari
Full support
6.1
| WebView Android
Full support
4.4
| Chrome Android
Full support
26
| Firefox Android
Full support
16
| Opera Android
Full support
12.1
| Safari iOS
Full support
7
| Samsung Internet Android
Full support
1.5
|
at syntax | Chrome Full support 26 | Edge Full support 12 | Firefox
Full support
16
| IE Full support 10 | Opera
Full support
15
| Safari No support No | WebView Android Full support ≤37 | Chrome Android Full support 26 | Firefox Android
Full support
16
| Opera Android
Full support
14
| Safari iOS No support No | Samsung Internet Android Full support 1.5 |
Double-position color stops | Chrome Full support 71 | Edge Full support 79 | Firefox Full support 64 | IE No support No | Opera Full support 58 | Safari Full support 12.1 | WebView Android Full support 71 | Chrome Android Full support 71 | Firefox Android Full support 64 | Opera Android Full support 50 | Safari iOS Full support 12.2 | Samsung Internet Android Full support 10.0 |
Interpolation Hints / Gradient Midpoints | Chrome Full support 40 | Edge Full support 79 | Firefox Full support 36 | IE No support No | Opera Full support 27 | Safari Full support 6.1 | WebView Android Full support 40 | Chrome Android Full support 40 | Firefox Android Full support 46 | Opera Android Full support 27 | Safari iOS Full support 7 | Samsung Internet Android Full support 4.0 |
Legend
- Full support
- Full support
- No support
- No support
- See implementation notes.
- See implementation notes.
- User must explicitly enable this feature.
- User must explicitly enable this feature.
- Requires a vendor prefix or different name for use.
- Requires a vendor prefix or different name for use.