header > img {
    display: block;
    align-self: center;
    border: 4px solid var(--shadow-color);
    border-radius: 50%;
    margin: auto;
    aspect-ratio: 1;
}

nav {
    text-align: center;
}

html {
    font-family: Charter, 'Bitstream Charter', 'Sitka Text', Cambria, serif;
    font-weight: normal;
}

a {
    text-decoration-line: underline;
    text-decoration-style: dotted;
    text-decoration-thickness: from-font;
}