.cert__grid.flex {
    flex-wrap: wrap;
    margin: -10px;
}

.cert__grid__item {
    flex: 0 0 25%;
    padding: 10px;
}

.cert__clickable {
    display: block;
    height: 100%;
    background-color: #FFF;
    border-radius: 8px;
    overflow: hidden;
}

@media (max-width: 1200px) {
    .cert__grid__item {
        flex: 0 0 33.3%;
        padding: 10px;
    } 
}

@media (max-width: 768px) {
    .cert__grid__item {
        flex: 0 0 50%;
        padding: 10px;
    } 
}