CSS for responsive and cropped widescreen thumbnails

Here’s some CSS overrides to make the YouTube thumbnails responsive, whilst keeping the play button centered, and also cropping the black bars from the top and bottom of widescreen thumbnails.

div.wpvl_auto_thumb_box{
    position: relative !important;
	width: 100% !important;
	height: 100% !important;
	overflow: hidden;
}

div.wpvl_auto_thumb_play{
	position: absolute !important;
	top: 50% !important;
	left: 50% !important;
	width:48px !important;
	height:48px !important;
	margin: -24px 0 0 -24px !important;
}

img.video_lightbox_auto_anchor_image{
	width: 100% !important;
	height: 100% !important;
	margin: -9.5% 0px -12%;
}

https://wordpress.org/plugins/wp-video-lightbox/