body {
    font-family:
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Oxygen,
        Ubuntu,
        Cantarell,
        "Open Sans",
        "Helvetica Neue",
        sans-serif;
}

h1 {
    color: steelblue;
}

.highlight {
    color: mediumseagreen;
}

.complete {
    color: mediumspringgreen;
}

.incomplete {
    color: tomato;
}