The CSS align-content
property sets how the browser distributes space between and around content items along the cross-axis of a flexbox container, and the main-axis of a grid container.
The interactive example below use Grid Layout to demonstrate some of the values of this property.
This property has no effect on single line flex containers (i.e. ones with flex-wrap: nowrap
).
/* Basic positional alignment */ /* align-content does not take left and right values */ align-content: center; /* Pack items around the center */ align-content: start; /* Pack items from the start */ align-content: end; /* Pack items from the end */ align-content: flex-start; /* Pack flex items from the start */ align-content: flex-end; /* Pack flex items from the end */ /* Normal alignment */ align-content: normal; /* Baseline alignment */ align-content: baseline; align-content: first baseline; align-content: last baseline; /* Distributed alignment */ align-content: space-between; /* Distribute items evenly The first item is flush with the start, the last is flush with the end */ align-content: space-around; /* Distribute items evenly Items have a half-size space on either end */ align-content: space-evenly; /* Distribute items evenly Items have equal space around them */ align-content: stretch; /* Distribute items evenly Stretch 'auto'-sized items to fit the container */ /* Overflow alignment */ align-content: safe center; align-content: unsafe center; /* Global values */ align-content: inherit; align-content: initial; align-content: unset;
start
end
flex-start
start
.flex-end
end
.center
normal
align-content
value was set.baseline
first baseline
last baseline
first baseline
is start
, the one for last baseline
is end
.space-between
space-around
space-evenly
stretch
auto
-sized items have their size increased equally (not proportionally), while still respecting the constraints imposed by max-height
/max-width
(or equivalent functionality), so that the combined size exactly fills the alignment container along the cross axis.safe
start
.unsafe
normal | <baseline-position> | <content-distribution> | <overflow-position>? <content-position>where
<baseline-position> = [ first | last ]? baseline
<content-distribution> = space-between | space-around | space-evenly | stretch
<overflow-position> = unsafe | safe
<content-position> = center | start | end | flex-start | flex-end
#container { height:200px; width: 240px; align-content: center; /* Can be changed in the live sample */ background-color: #8c8c8c; } .flex { display: flex; flex-wrap: wrap; } .grid { display: grid; grid-template-columns: repeat(auto-fill, 50px); } div > div { box-sizing: border-box; border: 2px solid #8c8c8c; width: 50px; display: flex; align-items: center; justify-content: center; } #item1 { background-color: #8cffa0; min-height: 30px; } #item2 { background-color: #a0c8ff; min-height: 50px; } #item3 { background-color: #ffa08c; min-height: 40px; } #item4 { background-color: #ffff8c; min-height: 60px; } #item5 { background-color: #ff8cff; min-height: 70px; } #item6 { background-color: #8cffff; min-height: 50px; font-size: 30px; } select { font-size: 16px; } .row { margin-top: 10px; }
<div id="container" class="flex"> <div id="item1">1</div> <div id="item2">2</div> <div id="item3">3</div> <div id="item4">4</div> <div id="item5">5</div> <div id="item6">6</div> </div> <div class="row"> <label for="display">display: </label> <select id="display"> <option value="flex">flex</option> <option value="grid">grid</option> </select> </div> <div class="row"> <label for="values">align-content: </label> <select id="values"> <option value="normal">normal</option> <option value="stretch">stretch</option> <option value="flex-start">flex-start</option> <option value="flex-end">flex-end</option> <option value="center" selected>center</option> <option value="space-between">space-between</option> <option value="space-around">space-around</option> <option value="space-evenly">space-evenly</option> <option value="start">start</option> <option value="end">end</option> <option value="left">left</option> <option value="right">right</option> <option value="baseline">baseline</option> <option value="first baseline">first baseline</option> <option value="last baseline">last baseline</option> <option value="safe center">safe center</option> <option value="unsafe center">unsafe center</option> <option value="safe right">safe right</option> <option value="unsafe right">unsafe right</option> <option value="safe end">safe end</option> <option value="unsafe end">unsafe end</option> <option value="safe flex-end">safe flex-end</option> <option value="unsafe flex-end">unsafe flex-end</option> </select> </div>
Specification | Status | Comment |
---|---|---|
CSS Box Alignment Module Level 3 The definition of 'align-content' in that specification. | Working Draft | Adds the [ first | last ]? baseline, start, end, left, right, unsafe | safe values. |
CSS Flexible Box Layout Module The definition of 'align-content' in that specification. | Candidate Recommendation | Initial definition |
Initial value | normal |
---|---|
Applies to | multi-line flex containers |
Inherited | no |
Media | visual |
Computed value | as specified |
Animation type | discrete |
Canonical order | the unique non-ambiguous order defined by the formal grammar |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 29
|
12
|
28
|
11 | 12.1 | 9
|
space-evenly |
60 | No | 52 | No | 47 | 11 |
start and end
|
Partial
|
No | Yes | No | Partial
|
No |
left and right
|
Partial
|
No | 52 — 60
|
No | Partial
|
? |
baseline |
57 | No | Yes | No | 44 | ? |
first baseline and last baseline
|
No | No | 52 | No | No | ? |
stretch |
57 | No | 52 | No | 44 | 9 |
safe and unsafe
|
No | No | 63 | No | No | ? |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | 4.4
|
29
|
Yes
|
28
|
12.1 | 9.2
|
Yes |
space-evenly |
60 | 60 | No | 52 | 47 | 11 | No |
start and end
|
Partial
|
Partial
|
No | No | Partial
|
No | Yes |
left and right
|
Partial
|
Partial
|
No | 52 — 60
|
Partial
|
? | Yes |
baseline |
57 | 57 | No | Yes | 44 | ? | 7.0 |
first baseline and last baseline
|
No | No | No | 52 | No | ? | No |
stretch |
57 | 57 | No | 52 | 44 | 9 | 7.0 |
safe and unsafe
|
? | ? | No | 63 | ? | ? | No |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 57 | 16 | 52 | No | 44 | 10.1 |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | 57 | 52 | Yes | 52 | 44 | 10.3 | 6.2 |
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https://developer.mozilla.org/en-US/docs/Web/CSS/align-content