div class footer__column footer__column_conte nt_info h3 class footer_

<div class="footer__column footer__column_content_info">
  <h3 class="footer__column-heading">О Практикуме</h3>
  <nav class="footer__column-heading-list">
    <ul class="footer__column-links" href="#">
      <li class="footer__column-links footer__column-links_button"><a class="footer__column-links_name" href="#">Главная</a></li>
      <li class="footer__column-links footer__column-links_button"><a class="footer__column-links_name" href="#">Концепции</a></li>
      <li class="footer__column-links footer__column-links_button"><a class="footer__column-links_name" href="#">Наставники</a></li>
    </ul>
  </nav>
</div>