Multiple perspectives-weird play icon

Hello, has anyone else noticed an offset Play icon when using the Multiple Perspectives page type with videos? See image .

Hi Lilian
I added this to your resources but for anyone else reading this thread...

In this case each of your videos added to the multiple perspectives page are from YouTube which displays its own overlay play button so to remove that button that is incorrectly positioned you can add a styles optional property to the page and add the following css:
HTH
Ron

Thanks, Ron, that works for Chrome and Edge.
Incidentally it was reported that the video was not showing in Firefox or IE. I then made a copy without your code and tested, and both with or without your code, the multiple perspectives won't play in Firefox or IE.
Again, is this a known issue?

Hi Lilian
the problem with Firefox and IE is nothing to do with the css I suggested. Neither is it unique to the multiple perspectives page because the same problem occurs with the video page too. I could be wrong but I suspect either a Firefox update or Flash update has stopped this working now in Firefox and IE even though it works fine in Chrome and Edge. Firefox is giving an error of Specified "type" attribute of "video/youtube" is not supported. That seems to be an error with the mediaelements code but needs further investigation. For now the best solution is to use one of the navigators and then embed code from YouTube so the video is played in YouTubes own player.
HTH
Ron