_includes/templates/big-three-subnav-band.html

<div class="component-wrapper big-three-subnav-band">
  <div class="width-4-12 width-12-12-m big-three-block">
    <a href="#">
      <img src="{{site.baseurl}}/assets/images/square-placeholder.png">
      <h3>Option One</h3>
    </a>
  </div>
  <div class="width-4-12 width-12-12-m big-three-block">
    <a href="#">
      <img src="{{site.baseurl}}/assets/images/square-placeholder.png">
      <h3>Option Two</h3>
    </a>
  </div>
  <div class="width-4-12 width-12-12-m big-three-block">
    <a href="#">
      <img src="{{site.baseurl}}/assets/images/square-placeholder.png">
      <h3>Option Three</h3>
    </a>
  </div>
</div>