YouTube embedded video: set different thumbnail

Question

I want to embed a video from YouTube that is not mine (so I can not change it at YouTube). The video has a thumbnail that is not representative for the video (I refer to the

Answer 1

I was having trouble with the autoplay from waldir's solution... using autoplay, the video was playing when the page loaded, not when the div got displayed.

This solution worked for me except I replaced

Watch the video

with

so that it would use my thumbnail in place of the text link.