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Flexbox

Flex helpers, based on flexbox, help layout responsive elements within a container.

Denali’s flex helpers are based on flexbox. For more information about flexbox Read this guide before getting started.

Flex

Helper classes for controlling how flex items both grow and shrink.

Class Properties
.flex display: flex;
.flex-auto flex: auto;
.flex-1 flex: 1;
.flex-... flex: …
.flex-4 flex: 4;

Flex

Use .flex to set flexbox properties for all items in the container.

<div class="flex">
  <div class="box"> Box 1</div>
  <div class="box"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Auto

Use .flex-auto to set flex items to shrink or grow.

<div class="flex">
  <div class="box w-50">Width 50px</div>
  <div class="box flex-auto">Flex Auto</div>
  <div class="box w-50">Width 50px</div>
</div>

Flex Size

Use .flex-1 to .flex-4 to set flex items width depending on other flex items in the same container.

<div class="flex">
  <div class="box flex-1">Flex 1</div>
  <div class="box flex-4">Flex 4</div>
</div>

Flex Direction

Helpers classes for controlling the direction of flex items.

Class Properties
.flex-column flex-direction: column;
.flex-column-reverse flex-direction: column-reverse;
.flex-row flex-direction: row;
.flex-row-reverse flex-direction: row-reverse;

Column

Use .flex-column to set flex container to align items vertically in the same direction.

<div class="flex flex-column">
  <div class="box"> Box 1</div>
  <div class="box"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Column Reversed

Use .flex-column-reverse to set flex container to align items vertically in the opposite direction.

<div class="flex flex-column-reverse">
  <div class="box"> Box 1</div>
  <div class="box"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Row

Use .flex-column to set flex container to align items horizontally in the same direction.

<div class="flex flex-row">
  <div class="box"> Box 1</div>
  <div class="box"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Row Reversed

Use .flex-column-reverse to set flex container to align items horizontally in the opposite direction.

<div class="flex flex-row-reverse">
  <div class="box"> Box 1</div>
  <div class="box"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Justify Content

Helpers classes for controlling how flex items are positioned.

Class Properties
.space-between justify-content: space-between;
.space-around justify-content: space-around;
.justify-content-center justify-content: center;

Space Between

Use .space-between to provide equal space between items in the container on the main axis.

<div class="flex space-between">
  <div class="box"> Box 1</div>
  <div class="box"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Space Around

Use .space-around to provide equal space around items in the container on the main axis.

<div class="flex space-around">
  <div class="box"> Box 1</div>
  <div class="box"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Center

Use .justify-content-center to center items in the container on the main axis.

<div class="flex justify-content-center">
  <div class="box"> Box 1</div>
  <div class="box"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Alignment

Helpers classes for controlling how flex items are positioned within a container.

Class Properties
.align-items-center align-items: center;
.align-self-start align-self: start;
.align-self-center align-self: center;
.align-content-center align-content: center;

Align Items Center

Use .align-items-center to center items in the container on the cross axis.

<div class="flex align-items-center">
  <div class="box"> Box 1</div>
  <div class="box"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Align Self Start

Use .align-self-start on a flex items to position that item at the start of the container on the cross axis.

<div class="flex">
  <div class="box"> Box 1</div>
  <div class="box align-self-start"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Align Self Center

Use .align-self-center on a flex items to center that item in the container on the cross axis.

<div class="flex">
  <div class="box"> Box 1</div>
  <div class="box align-self-center"> Box 2</div>
  <div class="box"> Box 3</div>
</div>

Align Content Center

Use .content-center to center all items in the container to the middle of the cross axis:

<div class="flex content-center">
  <div class="box"> Box 1</div>
  <div class="box"> Box 2</div>
  <div class="box"> Box 3</div>
</div>