.header {
    background: #b8dcea;
    text-align: center;
    padding: 5px;
}

.menus {
    color: white;
    background-color: #2f4f4f;
}

.columns {
    height: 250px;
}

.column1 {
    background: #b3b3b3;
}

.column2 {
    background: #c3c3c3;
}

.column3 {
    background: #d2d2d2;
}

.footer {
    background: #385959;
    height: 50px;
    color: white;
}

@media only screen and (max-width: 600px) {
    .column1, .column3 {
        order: 1;
    }

    .column2 {
        order: 2;
    }
}