A sidebar is a column of content that appears alongside the main content area of a webpage. It’s typically placed on the left or right side of the page. Sidebars often contain extra information, navigation links, search functions, or calls to action. They help organise secondary content without cluttering the main area of the page. On mobile devices, sidebars are often moved below the main content or hidden in a menu to maintain usability on smaller screens.
See also: Header, Footer, Navigation menu
