<a class="button button-lg" href="#">Button</a>
<a class="button" href="#">Button</a>
<a class="button button-sm" href="#">Button</a>
<a class="button-circle button-circle-xl" href="#">
<i class="bi bi-star"></i>
</a>
<a class="button-circle button-circle-lg" href="#">
<i class="bi bi-star"></i>
</a>
<a class="button-circle" href="#">
<i class="bi bi-star"></i>
</a>
<a class="button-circle button-circle-sm" href="#">
<i class="bi bi-star"></i>
</a>