<nav>
  <ul class="category-filter l-category-filter">
    <li class="category-filter__list-item is-selected"><a href="">All</a></li>
    <li class="category-filter__list-item"><a href="">Teenage voices on first financial decisions</a></li>
    <li class="category-filter__list-item"><a href="">Staying on in education</a></li>
    <li class="category-filter__list-item"><a href="">Moving into work</a></li>
    <li class="category-filter__list-item"><a href="">Saving and borrowing</a></li>
  </ul>
</nav>

<nav role="navigation" aria-label="category">
  <ul class="category-filter l-category-filter">
    <li class="category-filter__list-item is-selected"><a href="">All</a></li>
    <li class="category-filter__list-item"><a href="">Teenage voices on first financial decisions</a></li>
    <li class="category-filter__list-item"><a href="">Staying on in education</a></li>
    <li class="category-filter__list-item"><a href="">Moving into work</a></li>
    <li class="category-filter__list-item"><a href="">Saving and borrowing</a></li>
  </ul>
</nav>

Add aria roles to nav filter
Add aria roles to nav filter
