.list-board-menu-mobile #vina:checked + li {
	height: 210px;
}

.pingpong {
	animation: pingpong 1s ease-in-out infinite;
}

@keyframes pingpong {
	0% {
		opacity: 0;
	}

	25% {
		opacity: 0.5;
	}

	50% {
		opacity: 1;
	}

	75% {
		opacity: 0.5;
	}

	100% {
		opacity: 0;
	}

}