pinafore/src/routes/_components/settings/SettingsNavItem.html

<a class="settings-nav-item {className}"
   aria-label={ariaLabel}
   {href} >
  {label}
</a>
<style>
  a.settings-nav-item {
    font-size: 1.2em;
  }

  a.settings-nav-item.selected {
    font-weight: 600;
  }
</style>
<script>
  export default {
    computed: {
      className: ({ page, name }) => page === name ? 'selected' : '',
      ariaLabel: ({ page, name, label }) => page === name ? `${label} (current page)` : label
    }
  }
</script>