"rounded-lg-3" src="bootstrap-docs.png" alt="" width="720">
      </div>
    </div>
  </div>

  <div class="b-example-divider"></div>

  <div class="bg-dark text-secondary px-4 py-5 text-center">
    <div class="py-5">
      <h1 class="display-5 fw-bold text-white">Dark mode hero</h1>
      <div class="col-lg-6 mx-auto">
        <p class="fs-5 mb-4">Quickly design and customize responsive mobile-first sites with Bootstrap, the world’s most popular front-end open source toolkit, featuring Sass variables an