simple-icons/_sass/_components.grid.scss

.grid {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    margin: 1.5rem;
    padding: 0;
    @media (min-width: 720px) {
        margin: 3rem;
    }
    @supports (display: grid) {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(9rem,1fr));
        grid-auto-rows: 6rem;
        grid-column-gap: 0.375rem;
        grid-row-gap: 0.375rem;
        grid-auto-flow: dense;
    }
}

.grid-item {
    background-color: #757575;
    text-align: center;
    @supports not (display: grid) {
        border: 0.1875rem solid #FFF;
        padding: 0 0 0.75rem;
        width: 20%;
    }
}

.grid-item--ad {
    background-color: #EEE;
    grid-column: -2 / -1;
    grid-row-end: span 2;
    height: auto;
    @media (min-width: 21.75rem) {
        // 21.75rem is the minimum viewport
        // width with multiple columns
        grid-column: -3 / -1;
    }
    @supports not (display: grid) {
        width: 100%;
    }
}

.grid-item__link {
    color: $color-white;
    display: block;
    padding: 1rem 1rem 0;
    text-align: center;
    width: 100%;
}

.grid-item__image {
    height: 1.5rem;
    width: 1.5rem;
}

.grid-item__title {
    font-size: 0.75rem;
    font-weight: 400;
    line-height: 1rem;
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.grid-item__subtitle {
    color: $color-white;
    font-size: 0.75rem;
    line-height: 1rem;
    margin: 0;
    opacity: 0.5;
}