@govbr-ds/core/dist/components/button/examples/button-circle-dark-mode.html

Padrão Digital de Governo

<div class="p-3 bg-blue-warm-vivid-90">
  <button class="br-button circle primary dark-mode mr-3" type="button" aria-label="Ícone ilustrativo"><i class="fas fa-city" aria-hidden="true"></i>
  </button>
  <button class="br-button circle secondary dark-mode mr-3" type="button" aria-label="Ícone ilustrativo"><i class="fas fa-city" aria-hidden="true"></i>
  </button>
  <button class="br-button circle dark-mode" type="button" aria-label="Ícone ilustrativo"><i class="fas fa-city" aria-hidden="true"></i>
  </button>
</div>