ders 11 -->
    <header class="bg-dark">
      <div class="container">
        <nav class="navbar">
          <a href="https://www.froala.com">
            <img src="./imgs/logo.png" height="30" alt="image">
          </a>
        </nav>
      </div>
    </header>
    
    <!-- Headers 12 -->
    <header class="bg-dark">
      <div class="container text-center">
        <nav class="navbar">
          <a class="ml-auto mr-auto" href="https://www.froala.com">
            <img src="./imgs/logo.png" height="30"