The flex-wrap CSS property is used in flexbox layouts to control whether flex items should wrap onto multiple lines when there isn’t enough space along the main axis. It determines whether flex items should stay in a single line (the default behavior) or wrap onto additional lines as needed. The flex-wrap property accepts values like nowrap, wrap, and wrap-reverse.
For example, flex-wrap: wrap; will allow flex items to wrap onto multiple lines if necessary, creating a responsive layout that adapts to different screen sizes. The flex-wrap property is essential for controlling the wrapping behavior of flex items within a flex container.