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Sizing

Width

Utilities for setting the width of an element.

Quick reference

ClassDescription
w-autowidth: auto
w-fullwidth: 100%
w-screenwidth: 100vw
w-minwidth: min-content
w-maxwidth: max-content
w-fitwidth: fit-content
w-{size}width: {size}
w-{fraction}width: {fraction}

Available values
{size}: 0, 1, 2, 4, 6, 8, 10, 12, 14, 16, 20, 24, 28, 32, 40, 44, 48, 56, 64, 80, 96, 112, 128, 144
{fraction}: Any fraction is valid - e.g. 1/5

Basic usage

Fixed widths

Use w-{number} to set an element to a fixed width. Example w-32 = 3.2rem = 32px.

html
  <div class="w-128 ... "></div>
  <div class="w-64 ... "></div>
  <div class="w-32 ... "></div>
  <div class="w-16 ... "></div>
  <div class="w-8 ... "></div>
  <div class="w-4 ... "></div>
  <div class="w-2 ... "></div>

Percentage widths

Use w-{fraction} or w-full to set an element to a percentage based width.

w-1/2
w-1/2
w-2/5
w-3/5
w-1/3
w-2/3
w-1/4
w-3/4
w-1/5
w-4/5
w-1/6
w-5/6
w-full
html
<div class="flex ...">
  <div class="w-1/2 ...">w-1/2</div>
  <div class="w-1/2 ...">w-1/2</div>
</div>
<div class="flex ...">
  <div class="w-2/5 ...">w-2/5</div>
  <div class="w-3/5 ...">w-3/5</div>
</div>
<div class="flex ...">
  <div class="w-1/3 ...">w-1/3</div>
  <div class="w-2/3 ...">w-2/3</div>
</div>
<div class="flex ...">
  <div class="w-1/4 ...">w-1/4</div>
  <div class="w-3/4 ...">w-3/4</div>
</div>
<div class="flex ...">
  <div class="w-1/5 ...">w-1/5</div>
  <div class="w-4/5 ...">w-4/5</div>
</div>
<div class="flex ...">
  <div class="w-1/6 ...">w-1/6</div>
  <div class="w-5/6 ...">w-5/6</div>
</div>
  <div class="flex ...">
  <div class="w-full ...">w-full</div>
</div>

Viewport width

Use w-screen to make an element span the entire width of the viewport.

html
<div class="w-screen">
  <!-- ... -->
</div>

Resetting the width

The w-auto utility can be useful if you need to remove an element’s assigned width under a specific condition, like at a particular breakpoint:

html
<div class="w-full md:w-auto">
  <!-- ... -->
</div>

Arbitrary values

If you need to use a one-off width value, use square brackets to generate a property using any arbitrary value. Example: w-[256] generates width:25.6rem = 256px in most cases.

html
<div class="w-[256]">
  <!-- ... -->
</div>

Applying conditionally

Breakpoints and media queries

You can also use variant modifiers to target media queries like responsive breakpoints, dark mode, prefers-reduced-motion, and more. For example, use md:w-full to apply the w-full utility at only medium screen sizes and above.

html
<div class="w-1/2 md:w-full">
  <!-- ... -->
</div>

Released under the Apache 2.0 License.