.clients {
    display: -ms-grid;
    display: grid;
    -ms-grid-columns: 1fr 35px 1fr 35px 1fr;
    grid-template-columns: 1fr 1fr 1fr;
    -ms-grid-rows: 1fr 40px 1fr 40px 1fr;
    grid-template-rows: 1fr 1fr 1fr;
    grid-gap: 40px 35px;
}

.clients > *:nth-child(1) {
    -ms-grid-row: 1;
    -ms-grid-column: 1;
}

.clients > *:nth-child(2) {
    -ms-grid-row: 1;
    -ms-grid-column: 3;
}

.clients > *:nth-child(3) {
    -ms-grid-row: 1;
    -ms-grid-column: 5;
}

.clients > *:nth-child(4) {
    -ms-grid-row: 3;
    -ms-grid-column: 1;
}

.clients > *:nth-child(5) {
    -ms-grid-row: 3;
    -ms-grid-column: 3;
}

.clients > *:nth-child(6) {
    -ms-grid-row: 3;
    -ms-grid-column: 5;
}

.clients > *:nth-child(7) {
    -ms-grid-row: 5;
    -ms-grid-column: 1;
}

.clients > *:nth-child(8) {
    -ms-grid-row: 5;
    -ms-grid-column: 3;
}

.clients > *:nth-child(9) {
    -ms-grid-row: 5;
    -ms-grid-column: 5;
}

.clients__item {
    border-radius: 4px;
    border: 1px solid #f3f3f3;
    height: 180px;
    background-repeat: no-repeat;
    background-position: center;
    filter: grayscale(100%);
    transition: all 400ms ease;
}

.clients__item .imgdark {
    height: 100%;
    width: 100%;
    background-repeat: no-repeat;
    background-position: center;
    filter: brightness(0.4) grayscale(100%);
    transition: all 400ms ease;
}

.clients__item:hover {
    filter: none;
}

.clients__item:hover .imgdark {
    filter: none;
}

/* MEDIA */
@media (max-width: 800px) {
    .clients__item {
        height: 150px;
    }

    .clients__item {
        background-size: 70%;
        height: 100px;
    }

    .clients__item .imgdark {
        background-size: 70%;
    }
}

@media (max-width: 500px) {
    .clients__item {
        height: 80px;
    }
}

@media (max-width: 400px) {
    .clients__item {
        height: 70px;
    }
}