How to hide the pause button of all videos in a specific video category

i have a site i'm building that focuses on animations/videos. I put them into a category's where you click through png images to reach the videos. But when your press play there's a giant pause button that doesn't seem to want to go away covering my art. have tried ejecting code but cant seem to fix it. When you add a video block it has the settings to change autoplay, remove controls, etc, but since its in a category of videos that option seems to be missing. 

Thank you all in advance!

What is site url? I think we can try CSS code to hide this