about">About</a>
      <a href="/login" class="btn">Login</a>
    </nav>

    <main>
      <section class="main-content container">
        <article>
          <h2>Selector Specificity</h2>
          <p>
            Lorem ipsum dolor sit amet consectetur adipisicing elit. Odio unde
            amet fugit similique reiciendis <a href="/">distinctio</a> enim esse
            voluptatibus debitis omnis blanditiis totam laudantium, hic a optio
            consequatur repudiandae?
          </p>
          <p>
  