header {
    display: flex;
    flex-direction: column;
    background-color: #27526B;
    color:white;
    text-align: center;
}

@media screen and (min-width: 660px) {
    header {
        display: flex;
        flex-direction: row;
    }    
}

@media screen and (min-width: 768px) {

}

@media screen and (min-width: 1024px) {

}