How Can I Create Smooth Gradient Background Animations in CSS Without Using External Libraries?

Smoothly Animating Gradient Backgrounds with CSS

If you encounter issues with choppy gradient animations, where they abruptly change instead of smoothly transitioning, this article will provide a solution without relying on external libraries like jQuery.

Animation Challenges

When dealing with gradient animations, it can be challenging to achieve smooth transitions between multiple colors. The default animation behavior is often abrupt, causing the gradient to jump from one position to another.

Linear Gradient Background

To create a smooth gradient animation, we will employ a linear gradient background and use CSS animations to shift the background position. Our CSS style will look something like this:

#gradient {
  /* Gradient background properties */
  height: 300px;
  width: 300px;
  border: 1px solid black;
  font-size: 30px;
  background: linear-gradient(
    130deg,
    #ff7e00,
    #ffffff,
    #5cff00
  );
  background-size: 200% 200%;

  /* Animation properties */
  -webkit-animation: Animation 5s ease infinite;
  -moz-animation: Animation 5s ease infinite;
  animation: Animation 5s ease infinite;
}

@-webkit-keyframes Animation {
  0% {
    background-position: 10% 0%;
  }
  50% {
    background-position: 91% 100%;
  }
  100% {
    background-position: 10% 0%;
  }
}

@-moz-keyframes Animation {
  0% {
    background-position: 10% 0%;
  }
  50% {
    background-position: 91% 100%;
  }
  100% {
    background-position: 10% 0%;
  }
}

@keyframes Animation {
  0% {
    background-position: 10% 0%;
  }
  50% {
    background-position: 91% 100%;
  }
  100% {
    background-position: 10% 0%;
  }
}

HTML Implementation

In the HTML, we need to create a div element and apply the "gradient" class:

<div>

By manipulating the background position using CSS animations, we can create a fluid gradient animation. This approach eliminates the abrupt jumps and results in a smooth, gradual transition between colors.

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