how to do animation in html css code example

Example 1: animation in css

<!DOCTYPE html>
<html>
<head>
<style> 
div {
  width: 100px;
  height: 100px;
  background-color: red;
  position: relative;
  animation: myfirst 5s linear 2s infinite alternate;
}
@keyframes myfirst {
  0%   {background-color:red; left:0px; top:0px;}
  25%  {background-color:yellow; left:200px; top:0px;}
  50%  {background-color:blue; left:200px; top:200px;}
  75%  {background-color:green; left:0px; top:200px;}
  100% {background-color:red; left:0px; top:0px;}
}
</style>
</head>
<body>

<p><b>Note:</b> This example does not work in Internet Explorer 9 and earlier versions.</p>

<div><p>you can add text in this box or anithing else like a pictrue</p></div>

</body>

Example 2: webkit animation

@-webkit-keyframes pulse {
 0% {
   background-color: red;
   opacity: 1.0;
   -webkit-transform: scale(1.0) rotate(0deg);
 }
 33% {
   background-color: blue;
   opacity: 0.75;
   -webkit-transform: scale(1.1) rotate(-5deg);
 }
 67% {
   background-color: green;
   opacity: 0.5;
   -webkit-transform: scale(1.1) rotate(5deg);
 }
 100% {
   background-color: red;
   opacity: 1.0;
   -webkit-transform: scale(1.0) rotate(0deg);
 }
}

.pulsedbox {
 -webkit-animation-name: pulse;
 -webkit-animation-duration: 4s;
 -webkit-animation-direction: alternate;
 -webkit-animation-timing-function: ease-in-out;
}

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