rotate youtube videos

bookmarklet.js

javascript:(function() {
	let vid = document.querySelector('video');
	let scale, style;
	if (vid) {
		if (vid.toggle === undefined) {
			vid.toggle = true;
		}
		if (vid.toggle) {
			scale = vid.videoHeight/vid.videoWidth;
		}
		else {
			scale = 1;
		}
		vid.toggle = !vid.toggle;
		if (!vid.dg) {
			vid.dg = 90;
		}
		else {
			vid.dg += 90;
		}
		style = 'transform:rotate(' + vid.dg + 'deg) scale(' + scale + ');transition-duration:0.25s;position:absolute;width:100%;height:100%;';
		vid.parentNode.style = style;
		vid.addEventListener('ended', function (e) {
			vid.parentNode.style = '';
		}, false);
	} else {
		alert('no video element found.');
	}
})();