@keyframes rotation {
    0%,100%,50% {
        transform: rotate(0)
    }

    25% {
        transform: rotate(30deg)
    }

    75% {
        transform: rotate(-30deg)
    }
}

@keyframes pulsation {
    0% {
        transform: scale(0);
        opacity: 1
    }

    50% {
        opacity: .6
    }

    to {
        transform: scale(1);
        opacity: 0
    }
}