how to add a color gradient in css code example

Example 1: linear gradient css

/* A gradient tilted 100 degrees,
   starting gray and finishing black */

.class {
    background: linear-gradient(100deg, rgba(63, 63, 63, 0.8) 0%, rgba(255, 255, 255, 0) 25%);
}

/* A gradient going from the bottom to top
   starting red and finishing orange */

.class {
    background: linear-gradient(to top, #f32b60, #ff8f1f);
}

Example 2: css linear gradient

#grad {
  background-image: linear-gradient(to right, #f1b1b1 , #82e6e8);

}

Example 3: css horizontal gradient background color

.foo {
	background-image: linear-gradient(red, blue);
}

Example 4: double color background css

background: linear-gradient(<angle>, color1 color1-stop-at, color2 color2-start-at);