Iframe
An iframe (short for inline frame) is an HTML tag that allows an external webpage or widget to be embedded and displayed in a webpage. Iframes are commonly used to embed YouTube videos and Google maps but are used in myriad ways. Iframe tags can contain parameters such as width, height, frame border, start=x, etc to modify display attributes and widget behavior.
Example iframe code:
<iframe width="560" height="315" src="https://www.youtube.com/embed/4rp2aLQl7vg" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
coding