The HTML <param> tag
The <param> element is obsolete. It passed named parameters to a plugin-based <object> (Flash, Java applets). Since browser plugins were removed, it has no effect — use modern <video>, <audio> or <iframe> embeds instead.
Overview
The <param> element once supplied configuration parameters to an <object> in the era of browser plugins such as Flash and Java applets.
With plugins long gone from the web, <param> is now obsolete and does nothing in modern browsers. It is documented here only so you can recognize it in legacy code.
Embed media and external content with the purpose-built modern elements instead: <video> and <audio> for media, and <iframe> for embedded pages, each configured through its own attributes.
Syntax
<!-- Obsolete: do not use <param>. Use <video>, <audio> or <iframe>. -->