a_style.css , .., b.html. b.html a.html, a_style.css ?
, , . , . , .
, :
: 1
a_style.css b.php a.php:
a.php
<!DOCTYPE html>
<html lang="en">
<head>
<title>Page A</title>
<?php
require_once("b.php");
?>
<link href="a_style.css" type="text/css" rel="stylesheet" />
</head>
<body>
<p>This is a paragraph</p>
</body>
</html>
a_style.css
p{
color: #00ff00;
}
b.php
<style>
p{
color: #0000ff;
}
</style>
:

a_style.css b.php, a_style.css ( ), , .
: 2
a_style.css, b.php a.php:
a.php
<!DOCTYPE html>
<html lang="en">
<head>
<title>Page A</title>
<link href="a_style.css" type="text/css" rel="stylesheet" />
<?php
require_once("b.php");
?>
</head>
<body>
<p>This is a paragraph</p>
</body>
</html>
a_style.css
p{
color: #00ff00;
}
b.php
<style>
p{
color: #0000ff;
}
</style>
:

a_style.css b.php, b.php ( ), .