gecko-dev/testing/web-platform/tests/content-security-policy/README.css

.code {
    font-family: monospace;
    color: darkorange;
}

.codeTitle {
    font-family: sans-serif;
    padding: .3em;
    margin-bottom: -1em;
    background: #ffe;
    border-color: #ccc;
    border-width: 1px;
    border-style: groove;
}

.highlight1 {
    background: yellow;
}

.highlight2 {
    background: pink;
}

body {
    font-family: sans-serif;
}