PHP header in CSS file

Question

I've looked on here and managed to get my css file to work with php, however when I validate it, I get errors, specifically:

Unknown error org.w3c.www.http.HttpInvalidValueException: Invalid content type.

The file in question is medium.php

The html to link to the file reads:

<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <link rel="stylesheet" type="text/css" href="medium.php" media="screen and (max-width: 1024px)" />

The CSS/PHP file starts like this:

  <?php header("Content-type: text/css; charset: UTF-8");

include 'login.php';

$link = mysql_connect($hostname,$username,$password);
mysql_select_db($database) or die("Unable to select database");

Anyone know how to correct this so it formats correctly and does not generate an error please?

Answer 1

charset: UTF-8 is incorrect syntax; replace with charset=utf-8.