Only works with cinema mode! Show only the video when window is idle by windupbird144

/* ==UserStyle==
@name         Only works with cinema mode! Show only the video when window is idle
@version      20211008.18.57
@namespace    userstyles.world/user/windupbird144
@description  Enable cinema mode! A very simple stylesheet that hides everything except the video when you move your mouse out of the window. Only works with Cinema Mode.
@author       windupbird144
@license      CC0
==/UserStyle== */

@-moz-document domain("youtube.com") {
/* Hide everything except the video when not hovering over the body*/
body:not(:hover) #masthead-container,
body:not(:hover) #columns {
    opacity: 0 !important;
}
}