CSS Animation

CSS animation is a property that allows you to create animations on web pages using CSS. Animations can be used to add visual interest, highlight important elements, or provide feedback to the user.

To create an animation in CSS, you need to define the animation using the @keyframes rule, which specifies what the animation will do at different points in time. You then apply the animation to an element using the animation property, which specifies the name of the animation, the duration, and other options.

Here's an example of how to create a simple animation that causes an element to move back and forth:

@keyframes move {
    0% {
      transform: translateX(0);
    }
    50% {
      transform: translateX(50px);
    }
    100% {
      transform: translateX(0);
    }
  }
  
  div {
    animation: move 2s ease-in-out infinite;
  }

In this example, the @keyframes rule defines an animation called move that moves an element horizontally by 50 pixels and back to its original position. The div element is then given the animation property, which specifies that the move animation should be applied for 2 seconds, with an ease-in-out timing function, and should repeat infinitely.

Animations can also be used to change an element's appearance over time. Here's an example of an animation that changes the color of an element:

@keyframes color {
    0% {
      background-color: red;
    }
    50% {
      background-color: yellow;
    }
    100% {
      background-color: blue;
    }
  }
  
  div {
    animation: color 3s linear infinite;
  }

In this example, the @keyframes rule defines an animation called color that changes the background color of an element from red to yellow to blue. The div element is given the animation property, which specifies that the color animation should be applied for 3 seconds, with a linear timing function, and should repeat infinitely.

CSS animations can be used to create a wide variety of effects, from simple movements to complex sequences of transformations. However, like any other design element, animations should be used thoughtfully and with a purpose, rather than simply for the sake of adding visual interest.