If you are seeing a blank page, it may be the white screen of death, and it means that your code isn’t working correctly. I’d advise you to define the WP_DEBUG to true and check if any error was shown on the page.
Please do let us know if it helps.
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via FTP to my wp-content folder (the place where I have my theme) and added my style.css with<style> <?php include 'style.css'; ?> </style>
into my “reviews.php”-file.
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