Custom elements of controls YouTube video (IFrame Player API)

In short. How to implement custom elements of controls from YouTube video, like on this page (the first big video)? I just know that it’s all done with the IFrame Player API. Who did something like this in Webflow or has an idea how to implement it?

My project:
http://nurture-6b6e05.webflow.io/
https://preview.webflow.com/preview/nurture-6b6e05?preview=499719d018cf9448b88324b676d1cc5c

P.S. I created such a html file with primitive custom controls. Link.
And I’m thinking of putting html code in “html Ambed”. And it will look like html-frame inside html page. Am I right or not? Who can give me the ready html code of the video frame with the YouTube and with the controls identical, as on that site, which I could embed on the page in the Webflow in the manner described above?