JSFiddle - React, Tailwind, and code Playground

HTML

<iframe src="http://gifyoutube.com/embed/mG9rRw" frameborder="0" scrolling="no" width='480' height='270' style="-webkit-backface-visibility: hidden;-webkit-transform: scale(1);" ></iframe>

CSS

iframe {
    display: block;
    margin: 0 auto;
}