Quickly and responsively toggle the display value of components and more with our display utilities. Includes support for some of the more common values,as well as some extras for controlling display when printing.

Common display values

The displaypropertyaccepts a handful of values and we support many of them with utility classes. We purposefully don’t provide every value as a utility,so here’s what we support:

Put them to use by applying any of the classes to an element of your choice. For example,here’s how you could use the inline,block,or inline-block utilities(the same applies to the other classes).

<div class="d-inline bg-success">d-inline</div><div class="d-inline bg-success">d-inline</div>

<span class="d-block bg-primary">d-block</span>

<div class="d-inline-block bg-warning">d-inline-block</div><div class="d-inline-block bg-warning">d-inline-block</div>

Responsive variations also exist for every single utility mentioned above.

• .d-none
• .d-inline
• .d-inline-block
• .d-block
• .d-table
• .d-table-cell
• .d-flex
• .d-inline-flex
• .d-{breakPoint}-none
• .d-{breakPoint}-inline
• .d-{breakPoint}-inline-block
• .d-{breakPoint}-block
• .d-{breakPoint}-table
• .d-{breakPoint}-table-cell
• .d-{breakPoint}-flex
• .d-{breakPoint}-inline-flex

Hiding Elements

For faster mobile-friendly development,use responsive display classes for showing and hiding elements by device. Avoid creating entirely different versions of the same site,instead hide element responsively for each screen size.

To hide elements simply use the .d-noneclass or one of the .d-{sm,md,lg,xl}-noneclasses for any responsive screen variation.

To show an element only on a given interval of screen sizes you can combine one .d-*-noneclass with a .d-*-*class,for example .d-none.d-md-block.d-xl-nonewill hide the element for all screen sizes except on medium and large devices.

Display in print

Change the displayvalue of elements when printing with our print display utilities.

Create responsive video or slideshow embeds based on the width of the parent by creating an intrinsic ratio that scales on any device.

Rules are directly applied to <iframe>,<embed>,<video>,and <object>elements;optionally use an explicit descendant class .embed-responsive-itemwhen you want to match the styling for other attributes.

Pro-Tip!You don’t need to include frameborder="0"in your <iframe>s as we override that for you.

Example

Wrap any embed like an <iframe>in a parent element with .embed-responsiveand an aspect ratio. The .embed-responsive-itemisn’t strictly required,but we encourage it.

<div class="embed-responsive embed-responsive-16by9"><iframe class="embed-responsive-item" src="https://www.youtube.com/embed/zpOULjyy-n8?rel=0" allowfullscreen></iframe></div>

Aspect ratios

Aspect ratios can be customized with modifier classes.

<!-- 21:9 aspect ratio --><div class="embed-responsive embed-responsive-21by9"><iframe class="embed-responsive-item" src="..."></iframe></div><!-- 16:9 aspect ratio --><div class="embed-responsive embed-responsive-16by9"><iframe class="embed-responsive-item" src="..."></iframe></div><!-- 4:3 aspect ratio --><div class="embed-responsive embed-responsive-4by3"><iframe class="embed-responsive-item" src="..."></iframe></div><!-- 1:1 aspect ratio --><div class="embed-responsive embed-responsive-1by1"><iframe class="embed-responsive-item" src="..."></iframe></div>

Quickly manage the layout,alignment,and sizing of grid columns,navigation,components,and more with a full suite of responsive flexbox utilities. For more complex implementations,custom CSS may be necessary.

Enable flex behaviors

Apply displayutilities to create a flexbox container and transform direct children elementsinto flex items. Flex containers and items are able to be modified further with additional flex properties.

                <div class="d-flex p-2">I'm a flexbox container!</div>

                <div class="d-inline-flex p-2">I'm an inline flexbox container!</div>

Responsive variations also exist for .d-flexand .d-inline-flex.

• .d-flex
• .d-inline-flex
• .d-{breakpoint}-flex
• .d-{breakpoint}-inline-flex

Direction

Set the direction of flex items in a flex container with direction utilities. In most cases you can omit the horizontal class here as the browser default is row. However,you may encounter situations where you needed to explicitly set this value(like responsive layouts).

Use .flex-rowto set a horizontal direction(the browser default),or .flex-row-reverseto start the horizontal direction from the opposite side.

<div class="d-flex flex-row"><div class="p-2">Flex item 1</div><div class="p-2">Flex item 2</div><div class="p-2">Flex item 3</div></div><div class="d-flex flex-row-reverse"><div class="p-2">Flex item 1</div><div class="p-2">Flex item 2</div><div class="p-2">Flex item 3</div></div>

Use .flex-columnto set a vertical direction,or .flex-column-reverseto start the vertical direction from the opposite side.

<div class="d-flex flex-column"><div class="p-2">Flex item 1</div><div class="p-2">Flex item 2</div><div class="p-2">Flex item 3</div></div><div class="d-flex flex-column-reverse"><div class="p-2">Flex item 1</div><div class="p-2">Flex item 2</div><div class="p-2">Flex item 3</div></div>

Responsive variations also exist for flex-direction.

• .flex-{row/column}
• .flex-{row-reverse/column-reverse}
• .flex-{breakpoint}-{row/column}
• .flex-{breakpoint}-{row-reverse/column-reverse}

Justify content

Use justify-contentutilities on flexbox containers to change the alignment of flex items on the main axis(the x-axis to start,y-axis if flex-direction:column). Choose from start(browser default),end,center,between,or around.

<div class="d-flex justify-content-start">...</div><div class="d-flex justify-content-end">...</div><div class="d-flex justify-content-center">...</div><div class="d-flex justify-content-between">...</div><div class="d-flex justify-content-around">...</div>

Responsive variations also exist for justify-content.

• .justify-content-start
• .justify-content-end
• .justify-content-center
• .justify-content-between
• .justify-content-around
• .justify-content-{breakpoint}-{start/end/center/between/around}

Align items

Use align-itemsutilities on flexbox containers to change the alignment of flex items on the cross axis(the y-axis to start,x-axis if flex-direction:column). Choose from start,end,center,baseline,or stretch(browser default).

<div class="d-flex align-items-start">...</div><div class="d-flex align-items-end">...</div><div class="d-flex align-items-center">...</div><div class="d-flex align-items-baseline">...</div><div class="d-flex align-items-stretch">...</div>

Responsive variations also exist for align-items.

• .align-items-start
• .align-items-end
• .align-items-center
• .align-items-baseline
• .align-items-stretch
• .align-items-{breakpoint}-{start/end/center/baseline/stretch}

Align self

Use align-selfutilities on flexbox items to individually change their alignment on the cross axis(the y-axis to start,x-axis if flex-direction:column). Choose from the same options as align-items:start,end,center,baseline,or stretch(browser default).

<div class="align-self-start">Aligned flex item</div><div class="align-self-end">Aligned flex item</div><div class="align-self-center">Aligned flex item</div><div class="align-self-baseline">Aligned flex item</div><div class="align-self-stretch">Aligned flex item</div>

Responsive variations also exist for align-self.

• .align-self-start
• .align-self-end
• .align-self-center
• .align-self-baseline
• .align-self-stretch
• .align-self-{breakpoint}-{start/end/center/baseline/stretch}

Auto margins

Flexbox can do some pretty awesome things when you mix flex alignments with auto margins. Shown below are three examples of controlling flex items via auto margins:default(no auto margin),pushing two items to the right(.mr-auto),and pushing two items to the left(.ml-auto).

Unfortunately,IE10 and IE11 do not properly support auto margins on flex items whose parent has a non-default justify-contentvalue.See this StackOverflow answerfor more details.

<div class="d-flex"><div class="p-2">Flex item</div><div class="p-2">Flex item</div><div class="p-2">Flex item</div></div><div class="d-flex"><div class="mr-auto p-2">Flex item</div><div class="p-2">Flex item</div><div class="p-2">Flex item</div></div><div class="d-flex"><div class="p-2">Flex item</div><div class="p-2">Flex item</div><div class="ml-auto p-2">Flex item</div></div>

With align-items

Vertically move one flex item to the top or bottom of a container by mixing align-items,flex-direction:column,and margin-top:autoor margin-bottom:auto.

<div class="d-flex align-items-start flex-column" style="height: 200px;"><div class="mb-auto p-2">Flex item</div><div class="p-2">Flex item</div><div class="p-2">Flex item</div></div><div class="d-flex align-items-end flex-column" style="height: 200px;"><div class="p-2">Flex item</div><div class="p-2">Flex item</div><div class="mt-auto p-2">Flex item</div></div>

Wrap

Change how flex items wrap in a flex container. Choose from no wrapping at all(the browser default) with .flex-nowrap,wrapping with .flex-wrap,or reverse wrapping with .flex-wrap-reverse.

<div class="d-flex flex-nowrap">... </div>

<div class="d-flex flex-wrap">... </div>

<div class="d-flex flex-wrap-reverse">... </div>

Responsive variations also exist for flex-wrap.

• .flex-nowrap
• .flex-wrap
• .flex-wrap-reverse
• .flex-{breakpoint}-{nowrap/wrap/wrap-reverse}
• .flex-sm-wrap
• .flex-sm-wrap-reverse

Order

Change the visualorder of specific flex items with a handful of orderutilities. We only provide options for making an item first or last,as well as a reset to use the DOM order. As ordertakes any integer value(e.g.,5),add custom CSS for any additional values needed.

<div class="d-flex flex-nowrap"><div class="order-3 p-2">First flex item</div><div class="order-2 p-2">Second flex item</div><div class="order-1 p-2">Third flex item</div></div>

Responsive variations also exist for order.

• .order-{value}
• .order-{breakpoint}-{value}

Align content

Use align-contentutilities on flexbox containers to align flex items togetheron the cross axis. Choose from start(browser default),end,center,between,around,or stretch. To demonstrate these utilities,we’ve enforced flex-wrap:wrapand increased the number of flex items.

Heads up!This property has no effect on single rows of flex items.

<div class="d-flex align-content-start flex-wrap">... </div>

<div class="d-flex align-content-end flex-wrap">... </div>

<div class="d-flex align-content-center flex-wrap">... </div>

<div class="d-flex align-content-between flex-wrap">... </div>

<div class="d-flex align-content-around flex-wrap">... </div>

<div class="d-flex align-content-stretch flex-wrap">... </div>

Responsive variations also exist for align-content.

• .align-content-start
• .align-content-end
• .align-content-center
• .align-content-around
• .align-content-stretch
• .align-content-{breakpoint}-{start/end/center/around/stretch}

Toggle floats on any element,across any breakpoint,using our responsive float utilities.

These utility classes float an element to the left or right,or disable floating,based on the current viewport size using the CSS floatproperty. !importantis included to avoid specificity issues. These use the same viewport breakpoints as our grid system.

Toggle a float with a class:

                <div class="float-left">Float left on all viewport sizes</div><br>
                <div class="float-right">Float right on all viewport sizes</div><br>
                <div class="float-none">Don't float on all viewport sizes</div>

Responsive

Responsive variations also exist for each floatvalue.

<div class="float-sm-left">Float left on viewports sized SM(small) or wider</div><br><div class="float-md-left">Float left on viewports sized MD(medium) or wider</div><br><div class="float-lg-left">Float left on viewports sized LG(large) or wider</div><br><div class="float-xl-left">Float left on viewports sized XL(extra-large) or wider</div><br>

Here are all the support classes;

• .float-{left/right/none}
• .float-{breakpoint}-{left/right/none}

Swap text for background images with the image replacement class.

Utilize the .text-hideclass or mixin to help replace an element’s text content with a background image.

<h1 class="text-hide">Custom heading</h1>

Use the .text-hideclass to maintain the accessibility and SEO benefits of heading tags,but want to utilize a background-imageinstead of text.

<h1 class="text-hide my-2" style="background-image: url('static/image/logo.png'); width: 30px; height: 26px;">Bootstrap</h1>

Use these shorthand utilities for quickly configuring the position of an element.

Fixed top

Position an element at the top of the viewport, from edge to edge. Be sure you understand the ramifications of fixed position in your project; you may need to add aditional CSS.

                <div class="fixed-top">...</div>
                

Fixed bottom

Position an element at the bottom of the viewport, from edge to edge. Be sure you understand the ramifications of fixed position in your project; you may need to add aditional CSS.

                <div class="fixed-footer">...</div>
                

Sticky top

Position an element at the top of the viewport, from edge to edge, but only after you scroll past it. The .sticky-top utility uses CSS’s position: sticky, which isn’t fully supported in all browsers.

Microsoft Edge and IE11 will render position: sticky as position: relative. As such, we wrap the styles in a @supports query, limiting the stickiness to only browsers that properly can render it.

                <div class="sticky-top">...</div>
                

Use screenreader utilities to hide elements on all devices except screen readers.

Hide an element to all devices except screen readers with .sr-only. Combine .sr-only with .sr-only-focusable to show the element again when it’s focused (e.g. by a keyboard-only user). Can also be used as mixins.

                <a class="sr-only sr-only-focusable" href="#content">Skip to main content</a>
                

Easily make an element as wide or as tall (relative to its parent) with our width and height utilities.

Width and height utilities are generated from the $sizes Sass map in _variables.scss. Includes support for 25%, 50%, 75%, and 100% by default. Modify those values as you need to generate different utilities here.

                <div class="w-25 p-3" style="background-color: #eee;">Width 25%</div>
                <div class="w-50 p-3" style="background-color: #eee;">Width 50%</div>
                <div class="w-75 p-3" style="background-color: #eee;">Width 75%</div>
                <div class="w-100 p-3" style="background-color: #eee;">Width 100%</div>
                

                <div style="height: 100px; background-color: rgba(255,0,0,0.1);">
                  <div class="h-25 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 25%</div>
                  <div class="h-50 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 50%</div>
                  <div class="h-75 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 75%</div>
                  <div class="h-100 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">Height 100%</div>
                </div>
                

You can also use max-width: 100%; and max-height: 100%; utilities as needed.

                    <img class="mw-100" src="..." alt="Max-width 100%">
                

                <div style="height: 100px; background-color: rgba(255,0,0,0.1);">
                  <div class="mh-100" style="width: 100px; height: 200px; background-color: rgba(0,0,255,0.1);">Max-height 100%</div>
                </div>
                

Bootstrap includes a wide range of shorthand responsive margin and padding utility classes to modify an element's appearance.

How it works

Assign responsive-friendly marginor paddingvalues to an element or a subset of its sides with shorthand classes. Includes support for individual properties,all properties,and vertical and horizontal properties. Classes are built from a default Sass map ranging from .25remto 3rem.

Notation

Spacing utilities that apply to all breakpoints,from xs to xl,have no breakpoint abbreviation in them. This is because those classes are applied from min-width:0and up,and thus are not bound by a media query. The remaining breakpoints,however,do include a breakpoint abbreviation.

The classes are named using the format {property}{sides}-{size}for xsand {property}{sides}-{breakpoint}-{size}for sm,md,lg,and xl.

Where propertyis one of:

• m- for classes that set margin
• p- for classes that set padding

Where sidesis one of:

• t- for classes that set margin-topor padding-top
• b- for classes that set margin-bottomor padding-bottom
• l- for classes that set margin-leftor padding-left
• r- for classes that set margin-rightor padding-right
• x- for classes that set both *-leftand *-right
• y- for classes that set both *-topand *-bottom
• blank - for classes that set a marginor paddingon all 4 sides of the element

Where sizeis one of:

• 0- for classes that eliminate the marginor paddingby setting it to 0
• 1-(by default) for classes that set the marginor paddingto $spacer * .25
• 2-(by default) for classes that set the marginor paddingto $spacer * .5
• 3-(by default) for classes that set the marginor paddingto $spacer
• 4-(by default) for classes that set the marginor paddingto $spacer * 1.5
• 5-(by default) for classes that set the marginor paddingto $spacer * 3
• auto- for classes that set the marginto auto

(You can add more sizes by adding entries to the $spacersSass map variable.)

Horizontal centering

Additionally,Bootstrap also includes an .mx-autoclass for horizontally centering fixed-width block level content—that is,content that has display:blockand a widthset—by setting the horizontal margins to auto.

<div class="mx-auto" style="width: 200px;">Centered element </div>

Easily change the vertical alignment of inline,inline-block,inline-table,and table cell elements.

Change the alignment of elements with the vertical-alignmentutilities. Please note that vertical-align only affects inline,inline-block,inline-table,and table cell elements.

Choose from .align-baseline,.align-top,.align-middle,.align-bottom,.align-text-bottom,and .align-text-topas needed.

With table cells:

<table style="height: 100px;"><tbody><tr><td class="align-baseline">baseline</td><td class="align-top">top</td><td class="align-middle">middle</td><td class="align-bottom">bottom</td><td class="align-text-top">text-top</td><td class="align-text-bottom">text-bottom</td></tr></tbody></table>

Add one of these to class to change image size and other property.

z-index

Add one of these classes to change the elemets' z-index properties.

Edges

Add one of these to removes the slected edge of the elements, works with absolute, fixed and relative positioned elements.

Cursors

Add one of these to class to change cursor style.

Overflow

Add one of these to class to change overflow of element.

Control the visibility,without modifying the display,of elements with visibility utilities.

Set the visibilityof elements with our visibility utilities. These do not modify the displayvalue at all and are helpful for hiding content from most users,but still keeping them for screen readers.

Apply .visibleor .invisibleas needed.

<div class="visible">...</div><div class="invisible">...</div>