.container {
    max-width: 1150px;
    margin-bottom: 20px;
}

.grid-container {
    -webkit-column-count: 3;
    -moz-column-count: 3;
    column-count: 3;

    -webkit-grid-gap: 20px;
    -moz-grid-gap: 20px;
    grid-gap: 20px;
    margin: 0 0 20px 0;
}

.grid-item {
    display: inline-block;
    width: 100%;
}

.grid-item img {
    margin: 20px 0 0 0;
    width: 100%;
}