video::-webkit-media-controls{opacity:0;transition:opacity .3s ease}video:hover::-webkit-media-controls{opacity:1}video::-webkit-media-controls-panel{opacity:0;transition:opacity .3s ease}video:hover::-webkit-media-controls-panel{opacity:1}video::-webkit-media-controls-fullscreen-button,video::-webkit-media-controls-play-button,video::-webkit-media-controls-timeline,video::-webkit-media-controls-volume-slider{opacity:0;transition:opacity .3s ease}video:hover::-webkit-media-controls-fullscreen-button,video:hover::-webkit-media-controls-play-button,video:hover::-webkit-media-controls-timeline,video:hover::-webkit-media-controls-volume-slider{opacity:1}