The place-self CSS shorthand property allows you to align an individual item in both the block and inline directions at once (i.e. the align-self and justify-self properties) in a relevant layout system such as Grid or Flexbox. If the second value is not present, the first value is also used for it.

Constituent properties

This property is a shorthand for the following CSS properties:


/* Keyword values */
place-self: auto center;
place-self: normal start;

/* Positional alignment */
place-self: center normal;
place-self: start auto;
place-self: end normal;
place-self: self-start auto;
place-self: self-end normal;
place-self: flex-start auto;
place-self: flex-end normal;
place-self: left auto;
place-self: right normal;

/* Baseline alignment */
place-self: baseline normal;
place-self: first baseline auto;
place-self: last baseline normal;
place-self: stretch auto;

/* Global values */
place-self: inherit;
place-self: initial;
place-self: unset;


Computes to the parent's align-items value.
The effect of this keyword is dependent of the layout mode we are in:
  • In absolutely-positioned layouts, the keyword behaves like start on replaced absolutely-positioned boxes, and as stretch on all other absolutely-positioned boxes.
  • In static position of absolutely-positioned layouts, the keyword behaves as stretch.
  • For flex items, the keyword behaves as stretch.
  • For grid items, this keyword leads to a behavior similar to the one of stretch, except for boxes with an aspect ratio or an intrinsic sizes where it behaves like start.
  • The property doesn't apply to block-level boxes, and to table cells.
Aligns the items to be flush with the edge of the alignment container corresponding to the item's start side in the cross axis.
Aligns the items to be flush with the edge of the alignment container corresponding to the item's end side in the cross axis.
The cross-start margin edge of the flex item is flushed with the cross-start edge of the line.
The cross-end margin edge of the flex item is flushed with the cross-end edge of the line.
The flex item's margin box is centered within the line on the cross-axis. If the cross-size of the item is larger than the flex container, it will overflow equally in both directions.
first baseline

last baseline
Specifies participation in first- or last-baseline alignment: aligns the alignment baseline of the box’s first or last baseline set with the corresponding baseline in the shared first or last baseline set of all the boxes in its baseline-sharing group.
The fallback alignment for first baseline is start, the one for last baseline is end.
If the combined size of the items along the cross axis is less than the size of the alignment container and the item is auto-sized, its size is increased equally (not proportionally), while still respecting the constraints imposed by max-height/max-width (or equivalent functionality), so that the combined size of all auto-sized items exactly fills the alignment container along the cross axis.

Formal definition

Initial value as each of the properties of the shorthand:
Applies to block-level boxes, absolutely-positioned boxes, and grid items
Inherited no
Computed value as each of the properties of the shorthand:
  • align-self: auto computes to itself on absolutely-positioned elements, and to the computed value of align-items on the parent (minus any legacy keywords) on all other boxes, or start if the box has no parent. Its behavior depends on the layout model, as described for justify-self. Otherwise the specified value.
  • justify-self: as specified
Animation type discrete

Formal syntax

<'align-self'> <'justify-self'>?


Simple demonstration

In the following example we have a simple 2 x 2 grid layout. Initially the grid container has justify-items and align-items values of stretch — the defaults — which causes the grid items to stretch across the entire width of their cells.

The second, third, and fourth grid items are then given different values of place-self, to show how these override the default placements. These values cause the grid items to span only as wide/tall as their content width/height, and align in different positions across their cells, in the block and inline directions.


<article class="container">


html {
  font-family: helvetica, arial, sans-serif;
  letter-spacing: 1px;

article {
  background-color: red;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-auto-rows: 80px;
  grid-gap: 10px;
  width: 300px;

span:nth-child(2) {
  place-self: start center;

span:nth-child(3) {
  place-self: center start;

span:nth-child(4) {
  place-self: end;

article span {
  background-color: black;
  color: white;
  margin: 1px;
  text-align: center;

article, span {
  padding: 10px;
  border-radius: 7px;

article {
  margin: 20px;



Specification Status Comment
CSS Box Alignment Module Level 3
The definition of 'place-self' in that specification.
Working Draft Initial definition

Browser compatibilityUpdate compatibility data on GitHub

Chrome Edge Firefox Internet Explorer Opera Safari
Supported in Flex Layout 59 79 45 No 46 11
Supported in Grid Layout 59 79 45 No 46 No
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
Supported in Flex Layout 59 59 45 43 11 7.0
Supported in Grid Layout 59 59 45 43 No 7.0

See also

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