Html css display block margin

display

The display CSS property sets whether an element is treated as a block or inline box and the layout used for its children, such as flow layout, grid or flex.

Formally, the display property sets an element’s inner and outer display types. The outer type sets an element’s participation in flow layout; the inner type sets the layout of children. Some values of display are fully defined in their own individual specifications; for example the detail of what happens when display: flex is declared is defined in the CSS Flexible Box Model specification.

Try it

Syntax

/* precomposed values */ display: block; display: inline; display: inline-block; display: flex; display: inline-flex; display: grid; display: inline-grid; display: flow-root; /* box generation */ display: none; display: contents; /* multi-keyword syntax */ display: block flow; display: inline flow; display: inline flow-root; display: block flex; display: inline flex; display: block grid; display: inline grid; display: block flow-root; /* other values */ display: table; display: table-row; /* all table elements have an equivalent CSS display value */ display: list-item; /* Global values */ display: inherit; display: initial; display: revert; display: revert-layer; display: unset; 

The CSS display property is specified using keyword values.

Grouped values

The keyword values can be grouped into six value categories.

Outside

These keywords specify the element’s outer display type, which is essentially its role in flow layout:

The element generates a block box, generating line breaks both before and after the element when in the normal flow.

The element generates one or more inline boxes that do not generate line breaks before or after themselves. In normal flow, the next element will be on the same line if there is space.

Note: Browsers that support the multi-keyword syntax, on finding the outer value only, such as when display: block or display: inline is specified, will set the inner value to flow . This will result in expected behavior; for example, if you specify an element to be block, you would expect that the children of that element would participate in block and inline normal flow layout.

Inside

These keywords specify the element’s inner display type, which defines the type of formatting context that its contents are laid out in (assuming it is a non-replaced element):

The element lays out its contents using flow layout (block-and-inline layout).

If its outer display type is inline or run-in , and it is participating in a block or inline formatting context, then it generates an inline box. Otherwise it generates a block container box.

Depending on the value of other properties (such as position , float , or overflow ) and whether it is itself participating in a block or inline formatting context, it either establishes a new block formatting context (BFC) for its contents or integrates its contents into its parent formatting context.

The element generates a block box that establishes a new block formatting context, defining where the formatting root lies.

The element behaves like a block-level element and lays out its content according to the flexbox model.

The element behaves like a block-level element and lays out its content according to the grid model.

The element behaves like an inline-level element and lays out its content according to the ruby formatting model. It behaves like the corresponding HTML elements.

Note: Browsers that support the multi-keyword syntax, on finding the inner value only, such as when display: flex or display: grid is specified, will set their outer value to block . This will result in expected behavior; for example, if you specify an element to be display: grid , you would expect that the box created on the grid container would be a block-level box.

List Item

The element generates a block box for the content and a separate list-item inline box.

A single value of list-item will cause the element to behave like a list item. This can be used together with list-style-type and list-style-position .

Note: In browsers that support the multi-keyword syntax, if no inner value is specified, it will default to flow . If no outer value is specified, the principal box will have an outer display type of block .

Internal

Some layout models such as table and ruby have a complex internal structure, with several different roles that their children and descendants can fill. This section defines those «internal» display values, which only have meaning within that particular layout mode.

These elements behave like HTML elements.

These elements behave like HTML elements.

These elements behave like HTML elements.

These elements behave like HTML elements.

These elements behave like HTML elements.

These elements behave like HTML elements.

These elements behave like HTML elements.

These elements behave like HTML elements.

These elements behave like HTML elements.

These elements behave like HTML elements.

These elements are generated as anonymous boxes.

These elements behave like HTML elements.

Box

These values define whether an element generates display boxes at all.

These elements don’t produce a specific box by themselves. They are replaced by their pseudo-box and their child boxes. Please note that the CSS Display Level 3 spec defines how the contents value should affect «unusual elements» — elements that aren’t rendered purely by CSS box concepts such as replaced elements. See Appendix B: Effects of display: contents on Unusual Elements for more details.

Turns off the display of an element so that it has no effect on layout (the document is rendered as though the element did not exist). All descendant elements also have their display turned off. To have an element take up the space that it would normally take, but without actually rendering anything, use the visibility property instead.

Precomposed

CSS 2 used a single-keyword, precomposed syntax for the display property, requiring separate keywords for block-level and inline-level variants of the same layout mode.

The element generates a block box that will be flowed with surrounding content as if it were a single inline box (behaving much like a replaced element would).

It is equivalent to inline flow-root .

The inline-table value does not have a direct mapping in HTML. It behaves like an HTML element, but as an inline box, rather than a block-level box. Inside the table box is a block-level context.

It is equivalent to inline table .

The element behaves like an inline-level element and lays out its content according to the flexbox model.

It is equivalent to inline flex .

The element behaves like an inline-level element and lays out its content according to the grid model.

It is equivalent to inline grid .

Which syntax should you use now?

The Level 3 specification details two values for the display property — enabling the specification of the outer and inner display type explicitly — but this is not yet well-supported by browsers.

The precomposed methods allow the same results with single keyword values, and should be favoured by developers until the two keyword values are better supported. For example, using two values you might specify an inline flex container as follows:

.container  display: inline flex; > 

This can currently be specified using a single value.

.container  display: inline-flex; > 

For more information on these changes to the specification, see the article Adapting to the new multi-keyword syntax of display.

Global

/* Global values */ display: inherit; display: initial; display: unset; 

Description

The individual pages for the different types of value that display can have set on it feature multiple examples of those values in action — see the Syntax section. In addition, see the following material, which covers the various values of display in depth.

CSS Flow Layout (display: block, display: inline)

display: flex

display: grid

• Basic Concepts of Grid Layout
• Relationship to other layout methods
• Line-based placement
• Grid template areas
• Layout using named grid lines
• Auto-placement in grid layout
• Box alignment in grid layout
• Grids, logical values and writing modes
• CSS Grid Layout and Accessibility
• CSS Grid Layout and Progressive Enhancement
• Realizing common layouts using grids

Accessibility concerns

display: none

Using a display value of none on an element will remove it from the accessibility tree. This will cause the element and all its descendant elements to no longer be announced by screen reading technology.

If you want to visually hide the element, a more accessible alternative is to use a combination of properties to remove it visually from the screen but keep it parsable by assistive technology such as screen readers.

display: contents

Current implementations in some browsers will remove from the accessibility tree any element with a display value of contents (but descendants will remain). This will cause the element itself to no longer be announced by screen reading technology. This is incorrect behavior according to the CSS specification.

Tables

In some browsers, changing the display value of a element to block , grid , or flex will alter its representation in the accessibility tree. This will cause the table to no longer be announced properly by screen reading technology.

Formal definition

Initial value	inline
Applies to	all elements
Inherited	no
Computed value	as the specified value, except for positioned and floating elements and the root element. In both cases the computed value may be a keyword other than the one specified.
Animation type	Not animatable

Formal syntax

display =
[ || ] |
|
|
|
|
|| [ | math ]

=
block |
inline |
run-in

=
flow |
flow-root |
table |
flex |
grid |
ruby

=
? &&
[ flow | flow-root ]? &&
list-item

=
table-row-group |
table-header-group |
table-footer-group |
table-row |
table-cell |
table-column-group |
table-column |
table-caption |
ruby-base |
ruby-text |
ruby-base-container |
ruby-text-container

=
contents |
none

=
inline-block |
inline-table |
inline-flex |
inline-grid

Examples

display value comparison

In this example we have two block-level container elements, each one with three inline children. Below that, we have a select menu that allows you to apply different display values to the containers, allowing you to compare and contrast how the different values affect the element’s layout, and that of their children.

We’ve included padding and background-color on the containers and their children, so that it is easier to see the effect the display values are having.

Note: We’ve not included any of the modern multi-keyword syntax, as support for that is still fairly limited.

HTML

article class="container"> span>Firstspan> span>Secondspan> span>Thirdspan> article> article class="container"> span>Firstspan> span>Secondspan> span>Thirdspan> article> div> label for="display">Choose a display value:label> select id="display"> option selected>blockoption> option>inlineoption> option>inline-blockoption> option>noneoption> option>flexoption> option>inline-flexoption> option>gridoption> option>inline-gridoption> option>tableoption> option>list-itemoption> select> div> 

CSS

html  font-family: helvetica, arial, sans-serif; letter-spacing: 1px; padding-top: 10px; > article  background-color: red; > article span  background-color: black; color: white; margin: 1px; > article, span  padding: 10px; border-radius: 7px; > article, div  margin: 20px; > 

JavaScript

const articles = document.querySelectorAll(".container"); const select = document.querySelector("select"); function updateDisplay()  articles.forEach((article) =>  article.style.display = select.value; >); > select.addEventListener("change", updateDisplay); updateDisplay(); 

Result

Note: You can find more examples in the pages for each separate display data type, linked above.

Specifications

Browser compatibility

BCD tables only load in the browser

See also

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This page was last modified on Jul 20, 2023 by MDN contributors.

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