.flex_container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    align-items: center;
    width: 600px;
    height: 600px;
    border: 5px solid coral;
    background-color: rgba(255, 157, 157, 0.5);
}

.flex_elem {
    width: 150px;
    height: 150px;
    text-align: center;
    border: 3px solid rgb(7, 69, 149);
    background-color: rgba(7, 69, 149, 0.5);;
}