aside {
    text-align: center;
}

aside img {
    width: 100px;
    display: block;
    margin: auto;
    border: 1px solid;
}


header,
section,
article,
aside {
    border: 2px solid;
}

body {

    background-image: url('img/pizza.jpg');
    height: 100vh;
}


header {
    padding: 10px;
    grid-area: header;
    text-align: center;
    border-radius: 15px;
    box-shadow: 5px 5px 5px black;
    color: white;
    text-shadow: 2px 2px 2px black;
}

aside {

    background-color: rgb(207, 204, 204);
    padding: 10px;
}

main {}

footer {

    text-align: center;
    background-color: aqua;
}

article {
    height: 180px;
    padding: 5px;
    overflow-y: auto;
    margin: 10px;
    background-color: grey;
}

article img {
    /* As easy as floating down a stream... */
    height:
        100%;
}