body {
    background-image: url(face.svg);
    background-repeat: no-repeat;
}

.whole_head {
    animation-timing-function: ease-in-out;
    animation-duration: 2s;
    animation-iteration-count: infinite;
    animation-name: head_down;
}

@keyframes head_down {
    50% {
        transform: translateY(12px);
    }
}

.eye_left,
.eye_right {
    animation-timing-function: ease-in-out;
    animation-duration: 2s;
    animation-iteration-count: infinite;
    animation-name: blinking;
}

@keyframes blinking {
    10% {
        opacity: 0;
    }

    12% {
        opacity: 1;
    }
}