Sizing

Configure the height or width of an element.

Add shadows with .shadow, or remove them with .shadow-none. Define the size of a shadow using .shadow-sm and .shadow-lg

Relative to the parent

Specify the width of an element .w-{value}, where value can be 25, 50, 75, 100 or auto.

Width 25%
Width 50%
Width 75%
Width 100%
Width auto

<div class="border border-primary">
	<div class="w-25 p-2" style="background-color: #eee;">Width 25%</div>
	<div class="w-50 p-2" style="background-color: #eee;">Width 50%</div>
	<div class="w-75 p-2" style="background-color: #eee;">Width 75%</div>
	<div class="w-100 p-2" style="background-color: #eee;">Width 100%</div>
	<div class="w-auto p-2" style="background-color: #eee;">Width auto</div>
</div>

Specify the height of an element .h-{value}, where value can be 25, 50, 75, 100 or auto.

Height 25%
Height 50%
Height 75%
Height 100%
Height auto

<div style="height: 100px;" class="border border-primary">
  <div class="h-25 d-inline-block" style="width: 120px; background-color: #eee;">Height 25%</div>
  <div class="h-50 d-inline-block" style="width: 120px; background-color: #eee;">Height 50%</div>
  <div class="h-75 d-inline-block" style="width: 120px; background-color: #eee;">Height 75%</div>
  <div class="h-100 d-inline-block" style="width: 120px; background-color: #eee;">Height 100%</div>
  <div class="h-auto d-inline-block" style="width: 120px; background-color: #eee;">Height auto</div>
</div>

You can also use max-width: 100%; and max-height: 100%; utilities as needed, using .mw-100 and .mh-100 respectively.

Relative to the viewport

You can also use utilities to set the width and height relative to the viewport, using .vw-100 and .vh-100 respectively. Use .min-vw-100 to specify a minimum.


<div class="min-vw-100">Min-width 100vw</div>
<div class="min-vh-100">Min-height 100vh</div>
<div class="vw-100">Width 100vw</div>
<div class="vh-100">Height 100vh</div>

Read more

Shadows Spacing