@media only screen and (max-width: 600px) {

    footer {
        flex-direction: column;
    }

    nav ul {
        padding-inline-start: 0;
    }

    nav ul li {
        display: list-item;
        padding-inline-start: 0;
        ;
    }

    .page-top img {
        width: 80%;
        min-width: 20px;
        padding-top: 20px;
    }

    .flex-row {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
    }

    .flex-row > div {
    width: 100%; 
}

}