用css3写线性渐变案例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css" media="screen">
div{
width: 600px;
height: 200px;
margin: 50px auto;
border: 1px solid #000;
background: repeating-linear-gradient(to right,red 20px,green 20px,green 40px,red 40px,red 60px,green 60px);
transition: 2s;
}
div:hover{
background-position: 800px 0;
}
</style>
</head>
<body>
<div>
</div>
</body>
</html>