What are the potential pitfalls of using pixel counting for alignment in PHP?

Potential pitfalls of using pixel counting for alignment in PHP include inconsistencies across different devices and screen resolutions, which can lead to misaligned elements. To solve this issue, it is recommended to use percentage-based or relative units for alignment, such as percentages, em, or rem, to ensure consistent alignment across various devices and screen sizes.

<style>
    .container {
        width: 80%;
        margin: 0 auto;
    }
    .element {
        width: 50%;
        margin: 0 auto;
    }
</style>

<div class="container">
    <div class="element">
        <!-- Your content here -->
    </div>
</div>