What are best practices for handling overflow and margin issues in PHP websites?

Overflow and margin issues in PHP websites can be handled by using CSS to adjust the styling of elements. To prevent overflow, you can set the CSS property "overflow: hidden;" on the parent container to hide any content that exceeds the container's boundaries. To adjust margins, you can use CSS margin properties to add spacing between elements.

<style>
    .parent-container {
        overflow: hidden;
    }

    .child-element {
        margin: 10px;
    }
</style>