Sizing

For detail documentation, View Sizing on Bootstrap

Easily make an element as wide or as tall (relative to its parent) with our width and height utilities. Includes support for 25% , 50% , 75% , and 100% by default.

Width

<div class="bg-light p-2 border-dashed mb-3 w-100"><code>.w-100</code></div>
<div class="bg-light p-2 border-dashed mb-3 w-75"><code>.w-75</code></div>
<div class="bg-light p-2 border-dashed mb-3 w-50"><code>.w-50</code></div>
<div class="bg-light p-2 border-dashed mb-3 w-25"><code>.w-25</code></div>

Height

<div class="row vh-50 py-3">
  <div class="col">
    <div class="bg-light p-2 border-dashed mb-3 h-100"><code>.h-100</code></div>
  </div>
  <div class="col">
    <div class="bg-light p-2 border-dashed mb-3 h-75"><code>.h-75</code></div>
  </div>
  <div class="col">
    <div class="bg-light p-2 border-dashed mb-3 h-50"><code>.h-50</code></div>
  </div>
  <div class="col">
    <div class="bg-light p-2 border-dashed mb-3 h-25"><code>.h-25</code></div>
  </div>
</div>

Special height classes

Responsive variations also exist for sizing classes relative to the viewport. Here are all the support classes:

.min-vw-100 { min-width: 100vw; }
.vw-100 { width: 100vw; }
.max-vh-100 { max-height: 100vh; }
.max-vh-75 { max-height: 75vh; }
.max-vh-50 { max-height: 50vh; }
.max-vh-25 { max-height: 25vh; }
.min-vh-100 { min-height: 100vh; }
.min-vh-75 { min-height: 75vh; }
.min-vh-50 { min-height: 50vh; }
.min-vh-25 { min-height: 25vh; }
.vh-100 { height: 100vh !important; }
.vh-75 { height: 75vh !important; }
.vh-50 { height: 50vh !important; }
.vh-25 { height: 25vh !important; }
.max-vh-sm-100 { max-height: 100vh; }
.max-vh-sm-75 { max-height: 75vh; }
.max-vh-sm-50 { max-height: 50vh; }
.max-vh-sm-25 { max-height: 25vh; }
.min-vh-sm-100 { min-height: 100vh; }
.min-vh-sm-75 { min-height: 75vh; }
.min-vh-sm-50 { min-height: 50vh; }
.min-vh-sm-25 { min-height: 25vh; }
.vh-sm-100 { height: 100vh !important; }
.vh-sm-75 { height: 75vh !important; }
.vh-sm-50 { height: 50vh !important; }
.vh-sm-25 { height: 25vh !important; }
.max-vh-md-100 { max-height: 100vh; }
.max-vh-md-75 { max-height: 75vh; }
.max-vh-md-50 { max-height: 50vh; }
.max-vh-md-25 { max-height: 25vh; }
.min-vh-md-100 { min-height: 100vh; }
.min-vh-md-75 { min-height: 75vh; }
.min-vh-md-50 { min-height: 50vh; }
.min-vh-md-25 { min-height: 25vh; }
.vh-md-100 { height: 100vh !important; }
.vh-md-75 { height: 75vh !important; }
.vh-md-50 { height: 50vh !important; }
.vh-md-25 { height: 25vh !important; }
.max-vh-lg-100 { max-height: 100vh; }
.max-vh-lg-75 { max-height: 75vh; }
.max-vh-lg-50 { max-height: 50vh; }
.max-vh-lg-25 { max-height: 25vh; }
.min-vh-lg-100 { min-height: 100vh; }
.min-vh-lg-75 { min-height: 75vh; }
.min-vh-lg-50 { min-height: 50vh; }
.min-vh-lg-25 { min-height: 25vh; }
.vh-lg-100 { height: 100vh !important; }
.vh-lg-75 { height: 75vh !important; }
.vh-lg-50 { height: 50vh !important; }
.vh-lg-25 { height: 25vh !important; }
.max-vh-xl-100 { max-height: 100vh; }
.max-vh-xl-75 { max-height: 75vh; }
.max-vh-xl-50 { max-height: 50vh; }
.max-vh-xl-25 { max-height: 25vh; }
.min-vh-xl-100 { min-height: 100vh; }
.min-vh-xl-75 { min-height: 75vh; }
.min-vh-xl-50 { min-height: 50vh; }
.min-vh-xl-25 { min-height: 25vh; }
.vh-xl-100 { height: 100vh !important; }
.vh-xl-75 { height: 75vh !important; }
.vh-xl-50 { height: 50vh !important; }
.vh-xl-25 { height: 25vh !important; }
.max-vh-xxl-100 { max-height: 100vh; }
.max-vh-xxl-75 { max-height: 75vh; }
.max-vh-xxl-50 { max-height: 50vh; }
.max-vh-xxl-25 { max-height: 25vh; }
.min-vh-xxl-100 { min-height: 100vh; }
.min-vh-xxl-75 { min-height: 75vh; }
.min-vh-xxl-50 { min-height: 50vh; }
.min-vh-xxl-25 { min-height: 25vh; }
.vh-xxl-100 { height: 100vh !important; }
.vh-xxl-75 { height: 75vh !important; }
.vh-xxl-50 { height: 50vh !important; }
.vh-xxl-25 { height: 25vh !important; }