An iFrame, short for inline frame, is a web design element that allows for the embedding of one webpage within another. This allows for the seamless integration of external content, such as videos, maps, or social media feeds, into a website without disrupting the overall layout. iFrames are commonly used to enhance user experience and provide dynamic content, while also allowing for easy updates and maintenance. They are often used in online advertising, e-commerce, and content management systems. With the rise of responsive design, iFrames have become an essential tool for creating a visually appealing and functional website.