`flex-wrap` CSS property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2015.

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The flex-wrap CSS property sets whether flex items are forced onto one line or can wrap onto multiple lines. If wrapping is allowed, it sets the direction that lines are stacked.

Try it

flex-wrap: nowrap;

flex-wrap: wrap;

flex-wrap: wrap-reverse;

flex-wrap: wrap balance;

<section class="default-example" id="default-example">
  <div class="transition-all" id="example-element">
    <div>Item One</div>
    <div>Item Two</div>
    <div>Item Three</div>
    <div>Item Four</div>
    <div>Item Five</div>
    <div>Item Six</div>
    <div>Item Seven</div>
  </div>
</section>

#example-element {
  border: 1px solid #c5c5c5;
  width: 80%;
  display: flex;
}

#example-element > div {
  background-color: rgb(0 0 255 / 0.2);
  border: 3px solid blue;
  width: 60px;
  margin: 10px;
}

The flex-flow property shorthand can be used to set both the flex-direction and flex-wrap properties, which define the flex container's main and cross axes, respectively.

Syntax

css

/* Keyword values */
flex-wrap: nowrap;
flex-wrap: wrap;
flex-wrap: wrap-reverse;
flex-wrap: balance;
flex-wrap: wrap balance;
flex-wrap: balance wrap-reverse;

/* Global values */
flex-wrap: inherit;
flex-wrap: initial;
flex-wrap: revert;
flex-wrap: revert-layer;
flex-wrap: unset;

Values

This property is specified as a single value from the following list or as two space-separated values when using balance:

nowrap: The flex items are laid out in a single line which may cause the flex container to overflow. This is the initial value.
wrap: The flex items can break into multiple lines.
wrap-reverse: Behaves the same as wrap, but with the lines laid out in reverse order.
balance: Specifies that flex items broken across multiple lines are distributed so that the line lengths are as similar as possible. If balance is specified as the only keyword, the other keyword defaults to wrap.

The flex-wrap property is used to specify whether the flex container's child flex items may wrap onto multiple flex lines or not and, if set to wrap, whether the children should be evenly distributed across flex lines.

The initial value of nowrap specifies that all items should be laid out on a single flex line, which means they may overflow the container. The wrap and wrap-reverse keywords prevent overflow by specifying that flex items can flow, or wrap, across multiple lines.

With wrap, cross-start is the equivalent of inline-start or block-start, depending on the flex-direction value and the current writing mode. With wrap-reverse, cross-start is the equivalent of inline-end or block-end.

Balancing flex item distribution

By default, when wrap or wrap-reverse is specified, each flex line is filled with flex items before items are wrapped onto the next line. This can result in an uneven distribution of items, with the last flex line composed of fewer items. If those items' flex-grow values are non-zero, the extra available space is distributed across these fewer items, making them much larger than the items on filled flex lines.

The balance keyword can be used to distribute the items across lines in a more even manner. Optionally, the flex-line-count property can be used to define the minimum number of lines across which the balanced items should be distributed.

If balance is the only keyword specified, the other keyword defaults to wrap.

A balanced wrapping flex container can have a flex-line-count value applied to specify the minimum number of lines the flex items should be distributed over. The flex-line-count property has no effect if balance is not specified inside flex-wrap.

If balance is specified alongside nowrap, the property is invalid.

Formal definition

Initial value	`nowrap`
Applies to	flex containers
Inherited	no
Computed value	as specified
Animation type	discrete

Formal syntax

flex-wrap = 
  nowrap                              |
  [ wrap | wrap-reverse ] || balance

Examples

Setting flex container wrap values

HTML

html

<h4>This is an example for flex-wrap:wrap</h4>
<div class="content">
  <div class="red">1</div>
  <div class="green">2</div>
  <div class="blue">3</div>
</div>
<h4>This is an example for flex-wrap:nowrap</h4>
<div class="content1">
  <div class="red">1</div>
  <div class="green">2</div>
  <div class="blue">3</div>
</div>
<h4>This is an example for flex-wrap:wrap-reverse</h4>
<div class="content2">
  <div class="red">1</div>
  <div class="green">2</div>
  <div class="blue">3</div>
</div>

CSS

css

/* Common Styles */
.content,
.content1,
.content2 {
  color: white;
  font: 100 24px/100px sans-serif;
  height: 150px;
  width: 897px;
  text-align: center;
}

.content div,
.content1 div,
.content2 div {
  height: 50%;
  width: 300px;
}
.red {
  background: orangered;
}
.green {
  background: yellowgreen;
}
.blue {
  background: steelblue;
}

/* Flexbox Styles */
.content {
  display: flex;
  flex-wrap: wrap;
}
.content1 {
  display: flex;
  flex-wrap: nowrap;
}
.content2 {
  display: flex;
  flex-wrap: wrap-reverse;
}

Results

Demonstrating the `balance` keyword

This example demonstrates the effects of the balance keyword within the flex-wrap property and different flex-line-count values.

HTML

<form>
  <div>
    <input type="checkbox" id="reverse" name="reverse" />
    <label for="reverse">Set <code>wrap-reverse</code>?</label>
  </div>
  <div>
    <input type="checkbox" id="balance" name="balance" checked />
    <label for="balance">Set <code>balance</code>?</label>
  </div>
  <div>
    <label for="line-count"><code>flex-line-count</code></label>
    <input
      type="range"
      id="line-count"
      name="line-count"
      min="1"
      max="12"
      value="3" />
    <output>3</output>
  </div>
</form>

<hr />

<p>Currently set: <code>flex-wrap: wrap; flex-line-count: 3;</code></p>

<hr />

We include a container <div> with a class of box, which has ten child <div>s.

html

<div class="box">
  <div>One</div>
  <div>Two</div>
  <div>Three</div>
  <div>Four</div>
  <div>Five</div>
  <div>Six</div>
  <div>Seven</div>
  <div>Eight</div>
  <div>Nine</div>
  <div>Ten</div>
</div>

We also include controls to enable changing features of the flex container, including:

Toggling flex-wrap between the wrap and wrap-reverse values.
Toggling the balance keyword on and off.
Changing the flex-line-count value.

We've hidden the HTML and JavaScript for brevity.

CSS

We apply display: flex to the .box to turn it into a flex container, then set some flex-wrap and flex-line-count values to make the flex children wrap evenly over a minimum of three flex lines. You can change the values in the live demo. We also set a flex value of 1 1 150px on the flex children so they will have a base width of 150px, with any remaining space distributed evenly between items on the same flex line.

css

.box {
  display: flex;
  flex-wrap: wrap balance;
  flex-line-count: 3;
}

.box > * {
  flex: 1 1 150px;
}

.box {
  width: 100%;
  border: 2px dotted rgb(96 139 168);
  gap: 10px;
}

.box > * {
  border: 2px solid rgb(96 139 168);
  border-radius: 5px;
  background-color: rgb(96 139 168 / 0.2);
}

* {
  box-sizing: border-box;
}

body {
  padding: 10px 30px;
}

@supports not (flex-wrap: balance) {
  body::before {
    content: "Your browser does not support flex-wrap: balance.";
    background-color: wheat;
    text-align: center;
    padding: 1rem 0;

    z-index: 1;
    position: fixed;
    inset: 40% 0 auto;
  }
}

We've hidden the rest of the CSS for brevity.

const boxElem = document.querySelector(".box");
const outputElem = document.querySelector("output");
const pCodeElem = document.querySelector("p code");
const reverseInput = document.getElementById("reverse");
const balanceInput = document.getElementById("balance");
const lineCountInput = document.getElementById("line-count");

let wrapValue = "wrap";
let lineCountValue = "3";

function updateCurrentlySet() {
  pCodeElem.textContent = `flex-wrap: ${wrapValue}; flex-line-count: ${lineCountValue};`;
}

function setFlexWrap() {
  wrapValue = "";
  if (reverseInput.checked) {
    wrapValue += "wrap-reverse";
  } else {
    wrapValue += "wrap";
  }

  if (balanceInput.checked) {
    wrapValue += " balance";
  }

  boxElem.style.flexWrap = wrapValue;
  updateCurrentlySet();
}

function setFlexLineCount() {
  lineCountValue = lineCountInput.value;
  boxElem.style.flexLineCount = lineCountValue;
  outputElem.textContent = lineCountValue;
  updateCurrentlySet();
}

reverseInput.addEventListener("change", setFlexWrap);
balanceInput.addEventListener("change", setFlexWrap);
lineCountInput.addEventListener("input", setFlexLineCount);

Results

Change the form control settings to see how they affect the output. Note how:

Toggling between wrap and wrap-reverse changes the direction in which the flex lines are laid out along the cross-axis.
Setting balance causes the flex items to be evenly distributed across the available flex lines.
Changing the flex-line-count value changes the minimum number of lines the items will be distributed across. The flex-line-count property, and therefore the slider, has no effect unless balance is checked.
As the flex items are distributed over four flex lines by default, changing the flex-line-count to a value of less than 5 has no effect. Values from 5 to 10 add an extra flex line.
As there are 10 flex items, flex-line-count values of 10 or greater will all have the same effect — one item will be placed on each of 10 flex lines.

Specifications

Specification
CSS Flexible Box Layout Module Level 1 # flex-wrap-property

Browser compatibility

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`flex-wrap` CSS property

Try it

Syntax

Values

Description

Balancing flex item distribution

Formal definition

Formal syntax

Examples

Setting flex container wrap values

HTML

CSS

Results

Demonstrating the `balance` keyword

HTML

CSS

Results

Specifications

Browser compatibility

See also

Help improve MDN

flex-wrap CSS property

HTML

CSS

Results

HTML

CSS

Results

Help improve MDN

`flex-wrap` CSS property