.cub {  cursor: pointer; }
.cub:hover { animation: borderPulse 1.5s infinite alternate; }
@keyframes borderPulse {
	0% { opacity: 1; }
	50% { opacity: 0.7; }
	100% { opacity: 1; }
}
.zag { transform-style: preserve-3d; animation: rot .4s ease-in-out 2; font-weight: bold; margin-bottom: 5px; }
@keyframes rot { 50% { transform: rotateX(180deg) translateY(10px); } }
button {
	cursor: pointer;
	font-size: 24px; color:#333;
	margin-top: 8px; padding-left: 8px; padding-right: 8px;
	border: 3px solid #02B2E6; border-radius: 8px;
}