Is it possible to have two background colors for a single html element? [duplicate]

Solution 1:

Simply use linear-gradient as background and you can easily adjust the direction, colors, % of each color:

body {
  margin: 0;
  background: linear-gradient(to right, red 50%, blue 0%);
  
  height:100vh;
  text-align:center;
  color:#fff;
}

some content

body {
  margin: 0;
  background: linear-gradient(to bottom, red 60%, blue 0%);
  
  height:100vh;
  text-align:center;
  color:#fff;
}

some content

Or with pseudo-element and simple background-color then simply control the position/size of pseudo-element to control both background:

body {
  margin: 0;
  background: red;
  height: 100vh;
  position: relative;
  text-align:center;
  color:#fff;
}

body:before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 50%;
  background: blue;
  z-index:-1;
}

some content

body {
  margin: 0;
  background: red;
  height: 100vh;
  position: relative;
  text-align:center;
  color:#fff;
}

body:before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 40%;
  left: 0;
  right: 0;
  background: blue;
  z-index:-1;
}

some content

If you want more

You can combine different color inside gradient and also use multiple linear-background in order to achieve more complex color division for your background:

body {
  margin: 0;
  background:linear-gradient(30deg, red 50%, blue 50%, blue 70%,orange 70%) left/50% 100% no-repeat,              
              linear-gradient(-30deg, red 50%, blue 50%, blue 70%,orange 70%) right/50% 100% no-repeat;
  
  height:100vh;
  text-align:center;
  color:#fff;
}

some content

You can also do the same with pseudo element and also use some CSS transform (rotation, skew, etc):

body {
  margin: 0;
  background: red;
  height: 100vh;
  position: relative;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

body:before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -50%;
  right: 50%;
  background: blue;
  transform: skew(30deg);
  z-index: -1;
}

body:after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  right: -50%;
  background: orange;
  transform: skew(-30deg);
  z-index: -1;
}

some content

Solution 2:

You can use background gradients for that.

.stepwizard-row:before {
    background-image: linear-gradient(to right, #f00 50%, #ff0 50%)
}

Check this fiddle: https://jsfiddle.net/Lecazndk/

With that you can also create interesting effects and also use more than two colors.

https://jsfiddle.net/Lecazndk/1/

A good example of this usecase is the hero header on the Stripe website: https://stripe.com/