<iframe width="1920" height="1080" src="https://www.youtube.com/embed/mC0c74Uho2Q" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> code example
Example:
<iframe width="1012" height="569" src="https://www.youtube.com/embed/ScHI1cbkUv4" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>