Sizing
Relative to the parent
Width and height utilities are generated from the utility API in _utilities.scss
. Includes support for 25%
, 50%
, 75%
, 100%
, and auto
by default. Modify those values as you need to generate different utilities here.
<div class="w-25 p-3" style="background-color: #eee;">Width 25%</div> <div class="w-50 p-3" style="background-color: #eee;">Width 50%</div> <div class="w-75 p-3" style="background-color: #eee;">Width 75%</div> <div class="w-100 p-3" style="background-color: #eee;">Width 100%</div> <div class="w-auto p-3" style="background-color: #eee;">Width auto</div>
<div style="height: 100px; background-color: rgba(255,0,0,0.1);"> <div class="h-25 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 25%</div> <div class="h-50 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 50%</div> <div class="h-75 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 75%</div> <div class="h-100 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 100%</div> <div class="h-auto d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height auto</div> </div>
You can also use max-width: 100%;
and max-height: 100%;
utilities as needed.
<img src="..." class="mw-100" alt="...">
<div style="height: 100px; background-color: rgba(255,0,0,.1);"> <div class="mh-100" style="width: 100px; height: 200px; background-color: rgba(0,0,255,.1);">Max-height 100%</div> </div>
Relative to the viewport
You can also use utilities to set the width and height relative to the viewport.
<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>
Sass
Utilities API
Sizing utilities are declared in our utilities API in scss/_utilities.scss
. Learn how to use the utilities API.
"width": ( property: width, class: w, values: ( 25: 25%, 50: 50%, 75: 75%, 100: 100%, auto: auto ) ), "max-width": ( property: max-width, class: mw, values: (100: 100%) ), "viewport-width": ( property: width, class: vw, values: (100: 100vw) ), "min-viewport-width": ( property: min-width, class: min-vw, values: (100: 100vw) ), "height": ( property: height, class: h, values: ( 25: 25%, 50: 50%, 75: 75%, 100: 100%, auto: auto ) ), "max-height": ( property: max-height, class: mh, values: (100: 100%) ), "viewport-height": ( property: height, class: vh, values: (100: 100vh) ), "min-viewport-height": ( property: min-height, class: min-vh, values: (100: 100vh) ),
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Documentation licensed under the Creative Commons Attribution License v3.0.
https://getbootstrap.com/docs/5.2/utilities/sizing/