body {
    background-color: #f0f3ff;
    margin: 0;
    color: #211951;
}

a {
    color: #836fff;
}

a:hover a:visited {
    color: #ff6b6b;
}

body>header {
    padding: 0.5em;
    background-color: #15f5ba;
    position: sticky;
    top: 0;
}

main {
    margin: 0.5em;
}