In what situations should CSS be preferred over PHP for handling scrollbars in webpage outputs?

CSS should be preferred over PHP for handling scrollbars in webpage outputs when the styling of the scrollbar is purely visual and does not require any dynamic server-side processing. Using CSS for scrollbars allows for more flexibility and control over the appearance of the scrollbar without the need for server-side processing. This is especially useful for customizing the look and feel of scrollbars to match the overall design of the website.

// No PHP code needed for styling scrollbars with CSS