.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, 280px);
    column-gap: 40px;
    row-gap: 30px;
    justify-content: center;
}
.grid-container > div {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}