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  <div class="bs-docs-section">
    <div class="row">
      <div class="col-lg-12">
        <div class="page-header">
          <h1 id="containers">Containers</h1>
        </div>
        <div class="bs-component">
          <div class="jumbotron">
            <h1 class="display-3">Hello, world!</h1>
            <p class="lead">This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or information.</p>
         