Understanding <iframe>, <embed>, and <object>
HTML provides several elements for embedding external or non-HTML content into a page. The most common ones are <iframe>, <embed>, and <object>. While they may seem similar, each has a different purpose and typical use case.
<iframe>(Inline Frame): Used to embed another HTML document inside the current page (e.g., embedding YouTube videos, maps, or another website). It loads an entire web page within a rectangular frame.<embed>: A void element (no closing tag) used to embed external resources, usually multimedia like PDFs, audio, or Flash (historically). It’s simple but less flexible than<object>.<object>: A more general-purpose embedding element. It can embed images, videos, PDFs, or even another HTML page. Unlike<embed>, it supports fallback content inside its tags if the resource can’t be loaded.
In short: Use <iframe> to embed full web pages, <embed> for simple external resources, and <object> when you need embedding with fallback content.