Bootstrap 6 Grid utilities

These utilities work on any CSS Grid container — our .grid, a .d-grid, or an element you gave display: grid yourself. They do nothing in flexbox: flex has no justify-items, and it ignores justify-self.

Column counts

Set the track list with .grid-cols-{1|2|3|4|6}. Each one divides the container into equal fractions, so the items need no width of their own.

<div class="d-grid grid-cols-3 gap-3">
  <div>1</div>
  <div>2</div>
  <div>3</div>
</div>

On our .grid component the same job is done by --cui-columns, which takes any number. The class is the shortcut for the counts you reach for most.

Subgrid

.grid-cols-subgrid makes a nested grid adopt its parent’s tracks instead of defining its own, so items in different rows line up on the same columns.

<div class="d-grid grid-cols-3 gap-3">
  <div>1</div>
  <div>2</div>
  <div>3</div>
  <div class="d-grid grid-cols-subgrid gap-3" style="grid-column: span 3">
    <div>Aligned to column 1</div>
    <div>2</div>
    <div>3</div>
  </div>
</div>

Fill columns

.grid-cols-fill is the item-side counterpart: it spans the element across every track the container ended up with, whatever that number is.

<div class="d-grid grid-cols-3 gap-3">
  <div>1</div>
  <div>2</div>
  <div>3</div>
  <div class="grid-cols-fill">Spans the full row</div>
</div>

Auto flow

.grid-auto-flow-{row|column|dense} controls how items that were not placed explicitly get filled in — down the rows by default, across the columns with column, or back-filling earlier gaps with dense.

<div class="d-grid grid-cols-3 grid-auto-flow-column gap-3" style="grid-template-rows: repeat(2, auto)">
  <div>1</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
</div>

Alignment

align-items and align-self position items on the block axis, and they work in both flexbox and grid — they are covered under flex utilities. The inline axis is grid-only.

The inline axis is grid-only: see justify items and place items.

Responsive

Every utility on this page has responsive variants at each breakpoint — .grid-cols-md-2, .justify-items-lg-center, .grid-auto-flow-xl-column, and so on. They read the viewport width, like every other responsive utility. To respond to a container’s width instead, see container queries.

<div class="d-grid grid-cols-1 grid-cols-md-2 grid-cols-lg-4 gap-3">
  <div>1</div>
  <div>2</div>
  <div>3</div>
  <div>4</div>
</div>

Customizing

Utilities API

// `grid-cols-*` sets the track list on the container; `grid-cols-fill` is
// the item counterpart, spanning whatever the container ended up with.
"grid-template-columns": (
  responsive: true,
  property: grid-template-columns,
  class: grid-cols,
  values: (
    1: 1fr,
    2: repeat(2, 1fr),
    3: repeat(3, 1fr),
    4: repeat(4, 1fr),
    6: repeat(6, 1fr),
    subgrid: subgrid,
  )
),
"grid-column": (
  responsive: true,
  property: grid-column,
  class: grid-cols,
  values: (
    fill: #{"1 / -1"},
  )
),
"grid-auto-flow": (
  responsive: true,
  property: grid-auto-flow,
  class: grid-auto-flow,
  values: row column dense
),

The block lives in the $utilities map, so the utility API can extend, restrict or remove it like any other family.