# Operating system for this tutorial: Windows 10 system, Dell G3 computer.
In front-end development, is an HTML element used to create an inline frame (Inline Frame) in a web page. It allows an independent HTML document to be embedded into the current web page and displayed in a small window.
By using the element, you can display other web pages, embed third-party content (such as videos, maps, etc.) or display external resources in the web page. This inline frame can have independent scroll bars and borders, and its content is relatively independent and will not be affected by the styles and scripts of external web pages.
usually has the following attributes:
src: Specifies the source file URL of the embedded frame.
width and height: Specify the width and height of the frame.
frameborder: Specify whether to display the border.
scrolling: Specify whether to display scroll bars.
allowfullscreen: Specifies whether to allow embedded content to be displayed in full screen.
By using , developers can embed other web pages or functional modules in a web page to achieve richer content display and interactive effects. However, it should be noted that the use of may have some impact on web page performance and security, so it needs to be used with caution and ensure that the source of the content is trustworthy and safe.
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