Navigation

<ul class="nav">
  <li>
    <a
      href="/"
      class="nav__link"
    >
      Nav item
    </a>
  </li>
  <li>
    <a
      href="/"
      class="
        nav__link
        nav__link--active
      "
    >
      Nav item
    </a>
  </li>
  <li>
    <a
      href="/"
      class="
        nav__link
        nav__link--alert
      "
    >
      Nav item
    </a>
  </li>
</ul>