CSS Gradients
Gradient Backgrounds
CSS gradients let you
display smooth transitions between two or more specified colors.
CSS defines three types of
gradients:
- Linear Gradients (goes
down/up/left/right/diagonally)
- Radial Gradients (defined by their
center)
- Conic Gradients (rotated around a
center point)
CSS Linear Gradients
To create a linear gradient
you must define at least two color stops. Color stops are the colors you want
to render smooth transitions among. You can also set a starting point and a
direction (or an angle) along with the gradient effect.
Syntax
background-image: linear-gradient(direction, color-stop1, color-stop2, ...);
Direction
- Top to Bottom (this is default)
The following example shows
a linear gradient that starts at the top. It starts red, transitioning to
yellow:
top to bottom (default)
Example
#grad {
background-image: linear-gradient(red, yellow);
}
Direction
- Left to Right
The following example shows
a linear gradient that starts from the left. It starts red, transitioning to
yellow:
left to right
Example
#grad {
background-image: linear-gradient(to right, red , yellow);
}
Direction
- Diagonal
You can make a gradient
diagonally by specifying both the horizontal and vertical starting positions.
The following example shows
a linear gradient that starts at top left (and goes to bottom right). It starts
red, transitioning to yellow:
top left to bottom right
Example
#grad {
background-image: linear-gradient(to bottom right, red, yellow);
}
Using Angles
If you want more control
over the direction of the gradient, you can define an angle, instead of the
predefined directions (to bottom, to top, to right, to left, to bottom right,
etc.). A value of 0deg is equivalent to "to top". A value of 90deg is
equivalent to "to right". A value of 180deg is equivalent to "to
bottom".
Syntax
background-image: linear-gradient(angle, color-stop1, color-stop2);
The following example shows
how to use angles on linear gradients:
180deg
Example
#grad {
background-image: linear-gradient(180deg, red, yellow);
}
Using Multiple Color Stops
The following example shows
a linear gradient (from top to bottom) with multiple color stops:
Example
#grad {
background-image: linear-gradient(red, yellow, green);
}
The following example shows
how to create a linear gradient (from left to right) with the color of the
rainbow and some text:
Rainbow Background
Example
#grad {
background-image: linear-gradient(to right,
red,orange,yellow,green,blue,indigo,violet);
}
Using Transparency
CSS gradients also support
transparency, which can be used to create fading effects.
To add transparency, we use
the rgba() function to define the color stops. The last parameter in the rgba()
function can be a value from 0 to 1, and it defines the transparency of the
color: 0 indicates full transparency, 1 indicates full color (no transparency).
The following example shows
a linear gradient that starts from the left. It starts fully transparent,
transitioning to full color red:
Example
#grad {
background-image: linear-gradient(to right, rgba(255,0,0,0), rgba(255,0,0,1));
}Try it Yourself »
Repeating a linear-gradient
The
repeating-linear-gradient() function is used to repeat linear gradients:
Example
A
repeating linear gradient:
#grad {
background-image: repeating-linear-gradient(red, yellow 10%, green 20%);
}
CSS Radial
Gradients
A radial gradient is
defined by its center.
To create a radial gradient
you must also define at least two color stops.
Syntax
background-image: radial-gradient(shape size at position,
start-color, ..., last-color);
By default, shape is
ellipse, size is farthest-corner, and position is center.
Radial
Gradient - Evenly Spaced Color Stops (this is default)
The following example shows
a radial gradient with evenly spaced color stops:
Example
#grad {
background-image: radial-gradient(red, yellow, green);
}
Radial
Gradient - Differently Spaced Color Stops
The following example shows
a radial gradient with differently spaced color stops:
Example
#grad {
background-image: radial-gradient(red 5%, yellow 15%, green 60%);
}
Set Shape
The shape parameter defines
the shape. It can take the value circle or ellipse. The default value is
ellipse.
The following example shows
a radial gradient with the shape of a circle:
Example
#grad {
background-image: radial-gradient(circle, red, yellow, green);
}
Use of Different Size Keywords
The size parameter defines
the size of the gradient. It can take four values:
- closest-side
- farthest-side
- closest-corner
- farthest-corner
Example
A radial
gradient with different size keywords:
#grad1 {
background-image: radial-gradient(closest-side at 60% 55%, red, yellow,
black);
}
#grad2 {
background-image: radial-gradient(farthest-side at 60% 55%, red, yellow,
black);
}
Repeating a radial-gradient
The
repeating-radial-gradient() function is used to repeat radial gradients:
Example
A
repeating radial gradient:
#grad {
background-image: repeating-radial-gradient(red, yellow 10%, green 15%);
}
CSS Conic
Gradients
A conic gradient is a
gradient with color transitions rotated around a center point.
To create a conic gradient
you must define at least two colors.
Syntax
background-image: conic-gradient([from angle] [at position,] color [degree], color [degree], ...);
By default, angle is 0deg and position is
center.
If no degree is specified, the colors will be spread equally around the
center point.
Conic Gradient: Three Colors
The following example shows
a conic gradient with three colors:
Example
A conic
gradient with three colors:
#grad {
background-image: conic-gradient(red, yellow, green);
}
Conic Gradient: Five Colors
The following example shows
a conic gradient with five colors:
Example
A conic
gradient with five colors:
#grad {
background-image: conic-gradient(red, yellow, green, blue, black);
}
Conic Gradient: Three Colors and Degrees
The following example shows
a conic gradient with three colors and a degree for each color:
Example
A conic
gradient with three colors and a degree for each color:
#grad {
background-image: conic-gradient(red 45deg, yellow 90deg, green 210deg);
}
Create Pie Charts
Just add border-radius: 50% to
make the conic gradient look like a pie:
Example
#grad {
background-image: conic-gradient(red, yellow, green, blue, black);
border-radius: 50%;
}
Here is another pie chart
with defined degrees for all the colors:
Example
#grad {
background-image: conic-gradient(red 0deg, red 90deg, yellow 90deg,
yellow 180deg, green 180deg, green 270deg, blue 270deg);
border-radius: 50%;
}
Conic Gradient With Specified From Angle
The [from angle] specifies an angle that the entire conic gradient is rotated by.
The following example shows
a conic gradient with a from angle of 90deg:
Example
A conic
gradient with a from angle:
#grad {
background-image: conic-gradient(from 90deg, red, yellow, green);
}
Conic Gradient With Specified Center Position
The [at position] specifies the center of the conic gradient.
The following example shows
a conic gradient with a center position of 60% 45%:
Example
A conic
gradient with a specified center position:
#grad {
background-image: conic-gradient(at 60% 45%, red, yellow, green);
}
Repeating a Conic Gradient
The repeating-conic-gradient() function
is used to repeat conic gradients:
Example
A
repeating conic gradient:
#grad {
background-image: repeating-conic-gradient(red 10%, yellow 20%);
border-radius: 50%;
}
Here is a repeating conic
gradient with defined color-starts and color-stops:
Example
A
repeating conic gradient with defined color-starts and color-stops:
#grad {
background-image: repeating-conic-gradient(red 0deg 10deg, yellow 10deg
20deg, blue 20deg 30deg);
border-radius: 50%;
}
CSS Gradient Functions
The following table lists
the CSS gradient functions:
|
Function |
Description |
|
conic-gradient() |
Creates
a conic gradient. Define at least two colors (around a center point) |
|
linear-gradient() |
Creates
a linear gradient. Define at least two colors (top to bottom) |
|
radial-gradient() |
Creates
a radial gradient. Define at least two colors (center to edges) |
|
repeating-conic-gradient() |
Repeats
a conic gradient |
|
repeating-linear-gradient() |
Repeats
a linear gradient |
|
repeating-radial-gradient() |
Repeats
a radial gradient |
