body {
    font-family: "Arial";
    background: #ececec;
    margin: 16px;
}

section {
    display: flex;
}

section div {
    background: #e4c3d5;
    margin: 8px;
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 120px;
    text-align: center;
    font-size: 12px;
    text-transform: uppercase;
    font-weight: bold;
    color: #666;
    transition: all 0.5s;
}

.cols-4 div {
    height: 168px;
}

.cols-6,
.cols-3,
.cols-12 {
    display: none;
}

.wrapper {
    max-width: 1440px;
    margin: auto;
}

@media screen and (min-width: 768px) {

    body {
        margin: 32px;
    }

    .cols-1 div {
        height: 80px;
    }

    .cols-2 div,
    .cols-3 div,
    .cols-4 div {
        height: 176px;
    }


    .cols-3,
    .cols-6 {
        display: flex;
    }

}

@media screen and (min-width: 1000px) {
    .cols-2 div,
    .cols-3 div {
        height: 80px;
    }

    .cols-4 div,
    .cols-6 div {
            height: 200px;
    }

    .cols-12 {
        display: flex;
    }

    .cols-12 div {
        height: 88px;
    }
}