h1 {
    text-align: center;
}

.domain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 10px;
    grid-auto-rows: minmax(100px, auto);
}

@media screen and (max-width: 600px) {
    .domain-grid {
        grid-template-columns: repeat(1, 1fr);
    }
}