Bulma class: .field.is-grouped.is-grouped-multiline

<div class="field is-grouped is-grouped-multiline">
  <p class="control">
    <a class="button">
      One
    </a>
  </p>
  <p class="control">
    <a class="button">
      Two
    </a>
  </p>
  <p class="control">
    <a class="button">
      Three
    </a>
  </p>
  <p class="control">
    <a class="button">
      Four
    </a>
  </p>
  <p class="control">
    <a class="button">
      Five
    </a>
  </p>
  <p class="control">
    <a class="button">
      Size
    </a>
  </p>
  <p class="control">
    <a class="button">
      Seven
    </a>
  </p>
  <p class="control">
    <a class="button">
      Eight
    </a>
  </p>
  <p class="control">
    <a class="button">
      Nine
    </a>
  </p>
  <p class="control">
    <a class="button">
      Ten
    </a>
  </p>
  <p class="control">
    <a class="button">
      Eleven
    </a>
  </p>
  <p class="control">
    <a class="button">
      Twelve
    </a>
  </p>
  <p class="control">
    <a class="button">
      Thirteen
    </a>
  </p>
</div>