@media screen and (max-width: 768px) { /* Tablet */
    #z-wave .grid{
        display:flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    #z-wave .tile{
        flex: 0 0 47%;
        padding:1rem;
    }
}
@media screen and (max-width: 600px) {
    #z-wave .tile{
        flex: unset;
    }
}