ices recommend not to
          position content around the notch.
        </p>
      </aside>
    </section>
    <section>
      <h2>
        Concepts
      </h2>
      <ul>
        <li>
          <dfn>Window Controls Overlay</dfn>: feature for installed web
          applications running on non-mobile environments that allows the
          viewport to expand over the [=title bar area=] using JS and CSS.
        </li>
        <li>
          <dfn>Title bar area</dfn>: When WCO is enabled, this is the the
  