What are the best practices for separating CSS styles into a separate file from PHP code?

Separating CSS styles into a separate file from PHP code helps to improve code organization and maintainability. One common approach is to create a separate CSS file and link it to the PHP file using the <link> tag in the HTML <head> section. This allows for easier management of styles and promotes a cleaner separation of concerns between presentation and logic.

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Separating CSS Styles&lt;/title&gt;
    &lt;link rel=&quot;stylesheet&quot; type=&quot;text/css&quot; href=&quot;styles.css&quot;&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;?php
    // PHP code here
    ?&gt;
&lt;/body&gt;
&lt;/html&gt;