html, body {
    height: 100%;
    background-color: #f3f3f3;
}

body {
    margin: 0;
}

.flex-container {
    display: flex;
    flex-direction: column;
    height: 600px;
    padding-top: 80px;
    /* always on main axis */
    justify-content: start;
    /* always on cross axis */
    align-items: center;
}

.item {
    align-items: center;
    display: flex;
    flex-direction: row;
    justify-content: center;
}
