Chromecast button overlay

Dear All,
I’m new at webflow and i created my portfolio site. I have a homepage where i showcase my work through short videos. I used the background video element from webflow. But when i publish my site i see that there is a chromecast overlay button appearing on the videos. Is there a way to disable these overlays?

If there is some custom code. Could you also tell me where it should be inserted?
Many thanks!

Here is my site Read-Only: LINK
(how to share your site Read-Only link)