how to use animations in css code example

Example 1: css animation

<style>
.my-element {
  width: 100%;
  height: 100%;
  animation: tween-color 5s infinite;
}

@keyframes tween-color {
  0% {
    background-color: red;
  }
  50% {
    background-color: green;
  }
  100% {
    background-color: red;
  }
}

html,
body {
  height: 100%;
}
<style>

<body>
	<div class="my-element"></div>
</body>

Example 2: what is the animation property in html and css

with the help of animation properties in CSS we can control 
how the animation will be played throughout.

The animation properties in CSS are -
1) animation-duration : implies the time taken by the animation to finish.Forexample- animation-duration: 6s;  
2) animation-direction : implies the direction of the animation.Forexample- the direction in which the horse rides , the car moves , the insects crawls.
3) animation-delay: implies the time after which is the animation starts.Forexample- animation-delay: 3s; means after 3seconds the animation will start.
4) animation-iteration-count: implies how many times the animation will repeat.
5) animation-timing-function: the values can be ease,ease-in, ease-out, linear, ease-in-out.
6) animation-play-state: the values can be paused, running, initial, inherit.
7) animation-name: implies the name of the animation which is assigned by us.
8) animation-fill-mode: it specifies a style for the element when the animation is not playing.The values can be none,forwards, backwards, both, initial and inherit.
9) @keyframes: this is the most important.It specifies the different values of style in different intervals of time.The animation-name is used in @keyframes declaration.

NOTE: the syntax of every single letter, numbers, punctuation mark is very important.

Example 3: css animation

<style>

  #ball {
    width: 100px;
    height: 100px;
    margin: 50px auto;
    position: relative;
    border-radius: 50%;
    background: linear-gradient(
      35deg,
      #ccffff,
      #ffcccc
    );
    /*"Call" the animation "function" */
    animation-name: bounce;
    animation-duration: 1s;
    animation-iteration-count: infinite;
    animation-delay: 2s;
    /* Normal, reverse, alternate(between the fwd and back) 
    and alternate-reverse */
    animation-direction: reverse; 
    /* Ease is deafault, use cubic-bezier(n,n,n,n) for custom */
    animation-timing-function: linear; 
    
    /* if you want something to display from hidden
       set the opacity to 0 and in the keyframe steps bring
   	   the opacity to 1 gradually to stop it flashing */
  }
	
  /* The animation "bounce" */
  @keyframes bounce{
    /* start */
    0% {
      top: 0px;
    }
    /* step (you can add multiple incremental steps from 1-100) */
    50% {
      top: 249px;
      width: 130px;
      height: 90px;
    }
    /* end (you can count down from 100 to 0 too) */
    100% {
      top: 0px;
    }
  }
</style>

<div id="ball"></div>

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Html Example