Cách sử dụng
A banner is a long and narrow piece of material or paper with some kind of message, picture or logo on it. It is usually hung up in a public place, like on the side of a building, at a sporting event, or at a protest march. Banners can be used to promote a product or event, to convey a message, or to show support for a cause or team. In the digital world, a banner may also refer to an online advertisement or a header image on a website.