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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);}
Try it Yourself »

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);}
Try it Yourself »

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);}
Try it Yourself »








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);
}
Try it Yourself »


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);}
Try it Yourself »

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); }
Try it Yourself »


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%);}
Try it Yourself »













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Reference: https://www.w3schools.com/css/css3_gradients.asp