Add or remove shadows to elements with box-shadow utilities.
Use box-shadow utility classes.shadow-none or three default sizes .shadow, .shadow-sm and .shadow-lg.
Shadows on components are disabled by default in Bootstrap and can be enabled via $enable-shadows.
<div class="shadow-none p-3 mb-5 bg-light rounded">No shadow</div>
<div class="shadow-sm p-3 mb-5 bg-white rounded">Small shadow</div>
<div class="shadow p-3 mb-5 bg-white rounded">Regular shadow</div>
<div class="shadow-lg p-3 mb-5 bg-white rounded">Larger shadow</div>
