/* Source courtesy : https://www.w3schools.com/howto/howto_css_shake_image.asp */
img:hover {
	animation: shake 0.5s;
	animation-iteration-count: infinite;
} 
@keyframes shake {
	0% { transform: translate(1px, 1px) rotate(0deg); }
	10% { transform: translate(-1px, -2px) rotate(-1deg); }
	20% { transform: translate(-3px, 0px) rotate(1deg); }
	30% { transform: translate(3px, 2px) rotate(0deg); }
	40% { transform: translate(1px, -1px) rotate(1deg); }
	50% { transform: translate(-1px, 2px) rotate(-1deg); }
	60% { transform: translate(-3px, 1px) rotate(0deg); }
	70% { transform: translate(3px, 1px) rotate(-1deg); }
	80% { transform: translate(-1px, -1px) rotate(1deg); }
	90% { transform: translate(1px, 2px) rotate(0deg); }
	100% { transform: translate(1px, -2px) rotate(-1deg); }
}