What are the potential pitfalls of using multiple instances of the same style element in a PHP script?

Potential pitfalls of using multiple instances of the same style element in a PHP script include code duplication, maintenance difficulties, and increased file size. To solve this issue, it is recommended to define the style element once and then reuse it wherever needed by referencing the defined style.

<?php
// Define the style element once
$style = "color: red; font-size: 16px;";

// Use the defined style wherever needed
echo "<p style='$style'>This is a paragraph with red text.</p>";
echo "<div style='$style'>This is a div with red text.</div>";
?>