YouTube - Show Buttons On Hover When Paused

Hide buttons when the video is paused and show them again when hovered

/* ==UserStyle==
@name           YouTube - Show Buttons On Hover When Paused
@namespace      https://github.com/pabli24
@version        1.1.3
@description    Hide buttons when the video is paused and show them again when hovered
@author         Pabli
@license        MIT
@homepageURL    https://github.com/pabli24/YTPlayerHideButtonsWhenPaused
@supportURL     https://github.com/pabli24/YTPlayerHideButtonsWhenPaused/issues
@preprocessor   less
@var            checkbox opacityHide    "Show buttons on hover when paused" 1
@var            number   opacityPaused  "Buttons opacity when paused"       [1, 0, 1, 0.01]
@var            number   opacityPlaying "Buttons opacity when playing"      [1, 0, 1, 0.01]
==/UserStyle== */

@-moz-document domain("youtube.com") {
	& when (@opacityHide = 1) {
		.paused-mode:not(.unstarted-mode) > div:not(.html5-video-container):not(.ytp-ce-shadow) {
			opacity: 0;
		}
	}
	.paused-mode:hover > div:not(.html5-video-container):not(.ytp-ce-shadow) {
		opacity: @opacityPaused;
	}
	.playing-mode:not(.ytp-autohide):hover > div:not(.html5-video-container):not(.ytp-ce-shadow):not(.ytp-caption-window-container):not(.ytp-player-content):not(.sponsorSkipNoticeContainer) {
		opacity: @opacityPlaying;
	}
}