The hover effect is an interactive design element in web design that is triggered when a user moves the cursor over a specific element without clicking. This effect is often used to enhance user interactions and provide visual cues that an element is clickable or interactive. Examples of hover effects include changing button colors, highlighting text, or revealing additional information. Hover effects are typically implemented using CSS (Cascading Style Sheets) to improve the user experience and create an interactive, dynamic website. On mobile devices, where no cursor is available, hover effects must be adapted or replaced by touch events.