<div class="tile is-ancestor is-vertical">
  <div class="tile is-child box">
    <!-- Add content or other tiles -->
    <h1>Chalange</h1>
  </div>
  <div class="tile is-child box">
    <!-- Add content or other tiles -->
    <h1>fat text</h1>
  </div>
  <div class="tile is-child box">
    <!-- Add content or other tiles -->
    <h1>small text</h1>
  </div>

  <div class="tile is-parent">
    <div class="tile is-6 is-child box">
      <!-- Add content or other tiles -->
      <h1>img 1</h1>
    </div>
    <div class="tile is-6 is-child box">
      <!-- Add content or other tiles -->
      <h1>img 2</h1>
    </div>
  </div>

   <div class="tile is-child box">
    <!-- Add content or other tiles -->
    <h1>Button</h1>
  </div>

</div>