Bootstrap Utility API Guide: Shadow

What this Bootstrap Utility API class does

Set the box-shadow property of elements.

You can add or remove box-shadows with the shadow utility.

Example usage & available classes

<div class="shadow-none p-3 mb-5 bg-light rounded">No shadow</div>
<div class="shadow-sm p-3 mb-5 bg-body rounded">Small shadow</div>
<div class="shadow p-3 mb-5 bg-body rounded">Regular shadow</div>
<div class="shadow-lg p-3 mb-5 bg-body rounded">Larger shadow</div>

Example override

In the example override below, we are adding the additional class of "shadow-xl" with a value of "0 .5rem .5rem rgba(0,0,0,.075)".

"shadow": map-merge(
    map-get($utilities, "shadow"),
    (
        values: map-merge(
            map-get(map-get($utilities, "shadow"), "values"), (
                xl: 0 .5rem .5rem rgba(0,0,0,.075)
            ) 
        )
    )
)

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