どうしたら集中できるのでしょう？
"
frameborder="0"
allow="accelerometer; encrypted-media; gyroscope; picture-in-picture"
allowfullscreen
title="YnZa_YEXb4c"
loading="lazy"
src="//www.youtube-nocookie.com/embed/YnZa_YEXb4c?feature=oembed&controls=1&autoplay=1&enablejsapi=1&rel=1"
>