.pulse {
    animation: pulse 0.625s infinite;
    margin: 0 auto;
    display: table;
    margin-top: 50px;
    -webkit-animation-name: pulse;
    animation-name: pulse;
}

@-webkit-keyframes pulse {
    0% {
        -webkit-transform: scale(1);
    }
    50% {
        -webkit-transform: scale(1.01);
    }
    100% {
        -webkit-transform: scale(1);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.01);
    }
    100% {
        transform: scale(1);
    }
}