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.

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

Vertical

Use .vstack to 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="p-2">First item</div>
  <div class="p-2">Second item</div>
  <div class="p-2">Third item</div>
</div>

Horizontal

Use .hstack for 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="p-2">First item</div>
  <div class="p-2">Second item</div>
  <div class="p-2">Third item</div>
</div>

Using horizontal margin utilities like .ms-auto as spacers:

First item

Second item

Third item

html

<div class="hstack gap-3">
  <div class="p-2">First item</div>
  <div class="p-2 ms-auto">Second item</div>
  <div class="p-2">Third item</div>
</div>

And with vertical rules:

First item

Second item

Third item

html

<div class="hstack gap-3">
  <div class="p-2">First item</div>
  <div class="p-2 ms-auto">Second item</div>
  <div class="vr"></div>
  <div class="p-2">Third item</div>
</div>

Examples

Use .vstack to 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>

CSS

node_modules/bootstrap/scss/helpers/_stacks.scss

.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;
}