v class="vertical-section vertical-section-container centered">
    <iron-icon icon="svg-sample-icons:codepen"></iron-icon>
    <iron-icon icon="svg-sample-icons:twitter"></iron-icon>
    <iron-icon icon="svg-sample-icons:youtube"></iron-icon>
    <iron-icon icon="inline:shape"></iron-icon>
  </div>

</body>
</html>
