图片素材：
https://download.csdn.net/download/sunshine0508/11184893
代码如下：
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Moving stars</title>
<style type="text/css">
* { margin: 0; padding: 0; border: 0; }
html,body{
margin: 0;
}
@-webkit-keyframes STAR-MOVE {
from {
background-position:0% 0%
}
to {
background-position: 600% 0%
}
}
@keyframes STAR-MOVE {
from {
background-position: 0% 0%
}
to {
background-position: 600% 0%
}
}
.wall{
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
div#background{
background: black url('img/background.png') repeat-x 5% 0%;
/*background-size: cover;*/
-webkit-animation: STAR-MOVE 200s linear infinite;
-moz-animation: STAR-MOVE 200s linear infinite;
-ms-animation: STAR-MOVE 200s linear infinite;
animation: STAR-MOVE 200s linear infinite;
}
div#midground{
background:url('img/midground.png')repeat 20% 0%;
z-index: 1;
-webkit-animation: STAR-MOVE 100s linear infinite;
-moz-animation: STAR-MOVE 100s linear infinite;
-ms-animation: STAR-MOVE 100s linear infinite;
animation: STAR-MOVE 100s linear infinite;
}
div#foreground{
background:url('img/foreground.png')repeat 35% 0%;
z-index: 2;
-webkit-animation: STAR-MOVE 50s linear infinite;
-moz-animation: STAR-MOVE 50s linear infinite;
-ms-animation: STAR-MOVE 50s linear infinite;
animation: STAR-MOVE 50s linear infinite;
}
</style>
</head>
<body>
<div id="background" class="wall"></div>
<div id="midground" class="wall"></div>
<div id="foreground" class="wall"></div>
</body>
</html>
效果如下：
