/*----------------------------------------
    Flex-Container
----------------------------------------*/
.container-flex {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    align-content: stretch;
    gap: 15px;
    height: 400px;
}
.container-flex > div {
    flex: 1 1 200px;
    background-color: var(--orange);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
}
/* first-child, last-child, nth-child(x), nth-child(even), nth-child(odd), nth-child(3n) */
.container-flex > div:nth-child(odd) {
    background-color: var(--blue);
}