r)::before {
    content: "Example " counter(example);
}
.invalid.example:not(.no-marker)::before,
.illegal.example:not(.no-marker)::before {
    content: "Invalid Example" counter(example);
}

figcaption {
    counter-increment: figure;
}
figcaption:not(.no-marker)::before {
    content: "Figure " counter(figure) " ";
}
</style>
<style>/* Boilerplate: style-dfn-panel */
:root {
    --dfnpanel-bg: #ddd;
    --dfnpanel-text: var(--text);
    --dfnpanel-target-bg: #ffc;
    --dfnpanel-target-outline: orange;
