div.adso {
    background-color: rgba(255, 255, 255, 0.158);
    border-radius: 50%;
    color: rgba(5, 5, 5, 0.842);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    text-align:  center;
    height: 200px;
    margin-inline: auto;
    width: 200px;
}

div.adso:hover {
    cursor: pointer;
    animation: anim 1s ease-in infinite;
}

@keyframes anim {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}