Source

Stacks

Shorthand helpers that build on top of our flexbox utilities to make component layout faster and easier than ever.

On this page

Stacks offer a shortcut for applying a number of flexbox properties to quickly and easily create layouts in Bootstrap. All credit for the concept and implementation goes to the open source Pylon project .

Head up! Support for gap utilities with flexbox was recently added to Safari, so verifying considering your intended browser support. Grid layout should have no issues. Read more .

Vertical

Use .vstackto create vertical layouts. Stacked items are full-width by default. Use .gap-*utilities to add space between items.

First item

Second item

Third item

html

<div class="vstack gap-3">
  <div class="bg-light border">First item</div>
  <div class="bg-light border">Second item</div>
  <div class="bg-light border">Third item</div>
</div>

Horizontal

Use .hstackfor horizontal layouts. Stacked items are vertically centered by default and only take up their necessary width. Use .gap-*utilities to add space between items.

First item

Second item

Third item

html

<div class="hstack gap-3">
  <div class="bg-light border">First item</div>
  <div class="bg-light border">Second item</div>
  <div class="bg-light border">Third item</div>
</div>

Using horizontal margin utilities like .ms-autoas spacers:

First item

Second item

Third item

html

<div class="hstack gap-3">
  <div class="bg-light border">First item</div>
  <div class="bg-light border ms-auto">Second item</div>
  <div class="bg-light border">Third item</div>
</div>

And with vertical rules :

First item

Second item

Third item

html

<div class="hstack gap-3">
  <div class="bg-light border">First item</div>
  <div class="bg-light border ms-auto">Second item</div>
  <div class="vr"></div>
  <div class="bg-light border">Third item</div>
</div>

Examples

Use .vstackto stack buttons and other elements:

html

<div class="vstack gap-2 col-md-5 mx-auto">
  <button type="button" class="btn btn-secondary">Save changes</button>
  <button type="button" class="btn btn-outline-secondary">Cancel</button>
</div>

Create an inline form with .hstack:

html

<div class="hstack gap-3">
  <input class="form-control me-auto" type="text" placeholder="Add your item here..." aria-label="Add your item here...">
  <button type="button" class="btn btn-secondary">Submit</button>
  <div class="vr"></div>
  <button type="button" class="btn btn-outline-danger">Reset</button>
</div>

Sass

.hstack {
  display: flex;
  flex-direction: row;
  align-items: center;
  align-self: stretch;
}

.vstack {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  align-self: stretch;
}