What are common reasons for CSS not working in a PHP file?

Common reasons for CSS not working in a PHP file include incorrect file paths, missing or incorrect HTML structure, or conflicting styles. To solve this issue, ensure that the CSS file path is correct, that the HTML structure is properly formatted, and that there are no conflicting styles in the CSS file. 

<!DOCTYPE html>
<html>
<head>
    <link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
    <h1>Hello, world!</h1>
</body>
</html>

Keywords

CSS PHP file syntax error include path server configuration

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