Scroll refers to the action of moving through content on a web page by either using a mouse or a touch screen. It allows users to view additional information or navigate further within a webpage.

When scrolling, the web page moves up or down, revealing hidden content that was initially out of view. This can be done vertically or horizontally, depending on the layout of the page.

In HTML, scrolling is achieved using the overflow property in CSS. It can be set to values like hidden, scroll, or auto for different scrolling behaviors.

Scrolling is an essential user interaction on websites and applications, allowing users to access more information without cluttering the interface. It enhances usability and provides a seamless browsing experience.

Overall, scroll is a fundamental action in web design, enabling users to explore content beyond what is initially visible on the screen. It plays a crucial role in improving user engagement and satisfaction.