.card {
    margin: 10px;
    padding: 10px;
    background-color: rgb(245, 245, 245);
    box-shadow: 2px 6px 12px 2px rgba(0,0,0,0.4);
    z-index: 1;
}

div.card:hover {
    background-color: rgb(240, 240, 240);
    box-shadow: 2px 6px 12px 2px rgba(0,0,0,0.6);
}