Bulma class: .card-header-title.is-centered

<div class="card">
  <header class="card-header">
    <p class="card-header-title is-centered">
      Component
    </p>
    <a href="#" class="card-header-icon" aria-label="more options">
      <span class="icon">
        <i class="fas fa-angle-down" aria-hidden="true"></i>
      </span>
    </a>
  </header>
  <div class="card-content">
    <div class="content">
      Lorem ipsum dolor sit amet, consectetur adipiscing elit. Phasellus nec iaculis mauris.
      <a href="#">@bulmaio</a>. <a href="#">#css</a> <a href="#">#responsive</a>
      <br>
      <time datetime="2016-1-1">11:09 PM - 1 Jan 2016</time>
    </div>
  </div>
  <footer class="card-footer">
    <a href="#" class="card-footer-item">Save</a>
    <a href="#" class="card-footer-item">Edit</a>
    <a href="#" class="card-footer-item">Delete</a>
  </footer>
</div>