<div class="buttons is-centered">
<a class="button is-success">Button</a>
<a class="button is-info">Button</a>
<a class="button is-danger">Button</a>
</div>
<div class="buttons is-centered">
<a class="button is-success">Button</a>
<a class="button is-info">Button</a>
<a class="button is-danger">Button</a>
</div>