What are IFrames?

IFrames, or inline frames, are a specific type of HTML element designed to embed one HTML document within another. This functionality allows you to incorporate content from a different source, such as another web page, without leaving the current context of the parent page. This is particularly useful for displaying advertisements, videos, or content from social media within an existing web page.

When you use an IFrame, you can control its size and positioning using HTML attributes and CSS styles. This versatility makes IFrames a valuable tool in web design for integrating various types of content seamlessly. The other options do not accurately define IFrames, as they reference links, navigation elements, and CSS styles, which are separate concepts within web development.