body {
    font-family: 'Times New Roman', Times, serif;
    max-width: 650px;
    margin: 0 auto;
}

.highlight {
    background-color: salmon;
}
header {
    background-color: blueviolet;
    padding: .5em;
    color: white;
}
header > h1 {
    margin-bottom: 0;
    
}
header > h2 {
    font-size: 1em;
    margin-top: .2em;
}