How to Animate a Background Image in HTML & CSS

Welcome folks today in this blog post we will be animating background image with cloud moving animation in html and css. All the full source code of the application is shown below.

Get Started

In order to get started you need to make an index.html file and copy paste the following code

index.html

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Page Title</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" type="text/css" media="screen" href="main.css" />
</head>
<body>
  <div class="centered">Moving clouds background animation.</div>
</body>
</html>

<!DOCTYPE html>

<html>

<head>

<title>Page Title</title>

</head>

<body>

<div class="centered">Moving clouds background animation.</div>

</body>

</html>

Now we need to copy paste the css code inside the style.css file as shown below

style.css

body{
  width:560px;
  height:400px;
  background-color:#BFDFEC;
    background-repeat:repeat-x;
 background-image:url("https://i.stack.imgur.com/b7z29.png");
  animation: movement 10s linear infinite; 
}

@keyframes movement{
  0% {
    background-position:0px 0px;
  }
  100%{
    background-position:560px 0px;
  }
}

adiv{
  display:block;
  position:absolute;
  font-size:2rem;
  text-align:center;
  color:white;
  border:1px solid white;
  padding:2rem;
  border-radius:5px;
  margin-left: auto;
  margin-right: auto;
  
}

.centered {
  position: absolute;
  top: 30%;
  left: 30%;
  margin-top: -50px;
  margin-left: -100px;
  font-size:2rem;
  text-align:center;
  color:white;
  border:1px solid white;
  padding:2rem;

}

body{

width:560px;

height:400px;

background-color:#BFDFEC;

background-repeat:repeat-x;

background-image:url("https://i.stack.imgur.com/b7z29.png");

animation: movement 10s linear infinite;

}

@keyframes movement{

0% {

background-position:0px 0px;

}

100%{

background-position:560px 0px;

}

adiv{

display:block;

position:absolute;

font-size:2rem;

text-align:center;

color:white;

border:1px solid white;

padding:2rem;

border-radius:5px;

margin-left: auto;

margin-right: auto;

}

.centered {

position: absolute;

top: 30%;

left: 30%;

margin-top: -50px;

margin-left: -100px;

font-size:2rem;

text-align:center;

color:white;

border:1px solid white;

padding:2rem;

}