s="alert alert-secondary text-white font-weight-bold" role="alert">
      A simple secondary alert—check it out!
    </div>
    <div class="alert alert-success text-white font-weight-bold" role="alert">
      A simple success alert—check it out!
    </div>
    <div class="alert alert-danger text-white font-weight-bold" role="alert">
      A simple danger alert—check it out!
    </div>
    <div class="alert alert-warning text-white font-weight-bold" role="alert">
      A simple warning alert—check it