body{
    font-family: 'Courier New', Courier, monospace;
    max-width: 900px;
    margin: 0 auto;
}
header{
    background-color: blueviolet;
    padding: .4em;
}
header > h2{
    font-size: 1.2em;
    margin-top: 0.2em;
}
header h1 {
    margin-bottom: 0;
}

.highlight{
    background-color: salmon;
}