<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<style>
.box{
width: 1000px;
height: 200px;
margin:100px auto;
border: 1px solid #000;
/*background-color: red;*/
/* 浏览器私有化前缀：
-webkit-: 谷歌 苹果
-moz-:火狐
-ms-：ie
-o-：欧朋
*/
background:-webkit-linear-gradient(left,red,blue);
background:-moz-linear-gradient(left,red,blue);
background:-ms-linear-gradient(left,red,blue);
background:-o-linear-gradient(left,red,blue);
background:linear-gradient(left,red,blue);
}
</style>
</head>
<body>
<div class="box"></div>
</body>
</html>
