body {
    font-family: sans-serif;
}
.page-section {
    display: flex;
    flex-wrap: wrap;
    flex-flow: column wrap;
    justify-content:center;
    align-items:center;
}
.page-content picture {

}
.page-content img {
    width:100%;
}
.page-footer {
    color:#f1f1f1;
}