body {
    margin: 0;
}

header {
    padding: 6px 18px;
}

header > h1 {
    font-variant: small-caps;
    letter-spacing: 6px;
    text-shadow: 3px 3px 6px #222;
}

section {
    display: inline-block;
    vertical-align: top;
    padding: 6px 18px;
    margin: 0 6px 12px 6px;
    background-color: lightblue;
    border: 1px solid #ccc;
    border-radius: 12px;
    box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.2);
    max-width: 480px;
}

a:link {
    text-decoration: none;
    color: steelblue;
}

a:visited {
    text-decoration: none;
    color: steelblue;
}

a:hover {
    text-decoration: none;
    color: palevioletred;
}

pre {
    display: inline-block;
    vertical-align: top;
    padding: 6px 18px;
    margin: 0 6px 12px 6px;
    background-color: lightgrey;
    border: 1px solid #555;
    border-radius: 8px;
    box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
    max-width: 100vw;
    margin-top: 10px;
    white-space: pre-wrap;
}

pre::before {
    content: 'JavaScript';
    position: relative;
    top: -15px;
    display: block;
    padding: 2px 6px;
    width: 80px;
    border: 1px solid #333;
    border-radius: 3px;
    background-color: gray;
}