.pulse {
    animation: pulse-animation 2s infinite;
}

@keyframes pulse-animation {
    0% {
        box-shadow: 0 0 0 0px rgba(0, 0, 0, 0.2);
    }
    100% {
        box-shadow: 0 0 0 10px rgba(0, 0, 0, 0);
    }
}