Integrate video, audio and iframes with a better balance of accessibility, performance and security so multimedia improves the page instead of making it messier.
A serious video experience needs more than just a file source.
Use native controls, provide caption tracks when the content matters, and avoid intrusive autoplay with sound.
A `poster` image can also help users understand what the media is before pressing play.
An embed should be descriptive and as restricted as possible.
A descriptive `title` helps accessibility. `loading="lazy"` helps performance. `sandbox` and a minimal `allow` policy help reduce unnecessary privileges.
A good rule here is simple: if you cannot explain why a permission is needed, do not grant it.