CSS | @import

css/style2.css

* {
padding: 0;
margin: 0;
}
p {
width: 400px;
height: 400px;
position: absolute;
top: 50%;
left: 50%;
margin-top: -200px;
margin-left: -200px;
text-align: center;
line-height: 400px;
}

* {
 padding: 0;
 margin: 0;
}

p {
 width: 400px;
 height: 400px;
 position: absolute;
 top: 50%;
 left: 50%;
 margin-top: -200px;
 margin-left: -200px;
 text-align: center;
 line-height: 400px;
}

css/style1.css

p {
background-color: #3BA9DE;
}

p {
 background-color: #3BA9DE;
}

css/style.css

@import url(style1.css);
p {
color: #FFF;
font-size: 50px;
}

@import url(style1.css);

p {
 color: #FFF;
 font-size: 50px;
}

index.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>New Page</title>
<link href="css/style.css" rel="stylesheet" />
<style>
@import url(css/style2.css);
</style>
</head>
<body>
<p>Hello World!</p>
</body>
</html>

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>New Page</title>
<link href="css/style.css" rel="stylesheet" />
<style>
@import url(css/style2.css);
</style>
</head>
<body>
<p>Hello World!</p>
</body>
</html>