Opacity

Opacity utilities control the transparency of an element and all of its children.

Opacity values

Five levels are available: opacity-0 (invisible), opacity-25, opacity-50, opacity-75, and opacity-100 (fully opaque).

index.htmlhtml
<div class="d-flex gap-3">
  <span class="bg-surface-raised rounded-sm p-2 opacity-100">opacity-100</span>
  <span class="bg-surface-raised rounded-sm p-2 opacity-75">opacity-75</span>
  <span class="bg-surface-raised rounded-sm p-2 opacity-50">opacity-50</span>
  <span class="bg-surface-raised rounded-sm p-2 opacity-25">opacity-25</span>
  <span class="bg-surface-raised rounded-sm p-2 opacity-0">opacity-0</span>
</div>
opacity-100opacity-75opacity-50opacity-25opacity-0

Reference

ClassPropertyResponsive
.opacity-0opacity: 0No
.opacity-25opacity: 0.25No
.opacity-50opacity: 0.5No
.opacity-75opacity: 0.75No
.opacity-100opacity: 1No