body{
    font-family: Arial, Helvetica, sans-serif;
    max-width: 550px;
    margin: 0 auto;
}
.highlight {
    background-color: salmon;
}
header > h2 {
    font-size: 1.3em;
    margin-top: .2m;
}
header >h1 {
    margin-bottom: 0;
}
header {
    background-color: lightblue;
    padding: .5m;

}