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The CSS display property controls both how an element participates in the surrounding layout and how its children are arranged. Use block or inline to change its outer behavior, and use flex or grid when you need a different layout for its children. For most work, choose a value by asking two questions: what kind of box should this element create, and how should its contents be laid out?
How the two parts of display work
MDN Web Docs defines display as setting whether an element is treated as a block or inline box and the layout used for its children, such as flow, grid, or flex layout. These are the property’s outer and inner display types.
- Outer display: How the element participates in the surrounding flow, commonly as a block-level or inline-level box.
- Inner display: How the element’s child boxes are laid out, such as in normal flow, a flex layout, or a grid.
The familiar single-keyword values combine these dimensions. For example, flex means a block-level outer box with flex layout inside. The explicit form block flex expresses the same combination.
Compact and explicit syntax
| Compact value | Equivalent explicit value | What it does |
|---|---|---|
block |
block flow |
Block-level box with normal-flow children |
inline |
inline flow |
Inline-level box with normal-flow children |
flow-root |
block flow-root |
Block-level box that establishes a block formatting context |
inline-block |
inline flow-root |
Inline-level box with block formatting behavior inside |
flex |
block flex |
Block-level flex container |
inline-flex |
inline flex |
Inline-level flex container |
grid |
block grid |
Block-level grid container |
inline-grid |
inline grid |
Inline-level grid container |
If an inner type is omitted, it defaults to flow. If you use just flex or grid, the outer type defaults to block. The explicit syntax can make the two decisions easier to see, but there is no need to rewrite working compact values mechanically. MDN’s multi-keyword syntax guide shows using a legacy single-keyword value before its explicit equivalent when a fallback is needed; check support against the browsers you target.
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Choose an outer box for ordinary flow
block
A block-level box participates as a block in surrounding flow, typically starting on a new line. Its children use normal flow by default.
.panel {
display: block;
}inline
An inline-level box participates in a line of surrounding content rather than creating a block-level box. Its children use normal flow by default.
strong {
display: inline;
}inline-block
inline-block keeps the element inline-level in its surroundings while giving it block formatting behavior inside. It is equivalent to inline flow-root.
.badge {
display: inline-block;
}Arrange children with flexbox or grid
flex and inline-flex
Use flex when the element’s children should use flex layout and the container should be block-level. Use inline-flex when the flex container should participate as inline-level content.
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.row {
display: flex;
gap: 1rem;
}
.navigation {
display: inline-flex;
}The explicit equivalent for the navigation rule is display: inline flex.
grid and inline-grid
Use grid to arrange children in a grid while the container is block-level, or inline-grid when it should be inline-level in surrounding content.
.cards {
display: grid;
grid-template-columns: repeat(2, 1fr);
}The explicit form of inline-grid is inline grid.
Contain floats with flow-root
flow-root creates a block-level box that establishes a new block formatting context. According to MDN Web Docs’ block formatting context guide, such a context contains its internal floats, excludes external floats, and suppresses margin collapsing across the context boundary.
.clearfix {
display: flow-root;
}This is useful when a container should account for floated children without adding extra markup. It is not the same as a flex or grid layout: children remain in flow unless other CSS changes their layout.
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Use list-item for marker behavior
list-item creates a principal box and a ::marker box governed by list-style properties. It can make a non-list element render with list-item behavior, though semantic list markup is usually clearer when the content is actually a list.
.fake-item {
display: list-item;
}MDN documents the value in its display-listitem reference.
Use table display values carefully
The table family of display values provides table-formatting roles; values such as table-row and table-cell correspond to parts of table structure. For tabular data, prefer semantic HTML elements such as <table>, <tr>, and <td> rather than trying to recreate table semantics with generic elements and CSS.
Changing a real <table> element’s display to block, grid, or flex can change its representation in the accessibility tree in some browsers, affecting screen-reader announcements. Test the actual browser and assistive-technology combinations your site supports before changing table layout this way.
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Hide an element or remove only its box
display: none
display: none makes the element and its descendants generate no boxes, so they do not take up layout space.
.is-hidden {
display: none;
}display: contents
display: contents removes the element’s own principal box while its child boxes remain in layout. This is different from hiding the whole subtree. Because the element’s box is removed, consider the effect on styling, semantics, and accessibility before applying it to meaningful structural elements.
.wrapper {
display: contents;
}When to use visibility instead
Use visibility when an element should not be visibly rendered but should retain its layout space. Choose between it and display: none based on whether surrounding content should close up the gap.
Check browser support for less common values
The display property overall is widely available, but support can vary among individual values. MDN also documents ruby-related values and grid-lanes values; do not assume these are implemented across every browser. Check the relevant compatibility data for the exact value and browser matrix your project requires.
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Build and inspect a page screenshot
To check how display changes affect a real page, you can capture it in a browser yourself. A minimal Playwright example navigates to a URL and saves a screenshot; install Playwright and its browser as described in its official documentation before running this script.
import { chromium } from 'playwright';
const browser = await chromium.launch();
const page = await browser.newPage({ viewport: { width: 1280, height: 800 } });
await page.goto('https://example.com', { waitUntil: 'networkidle' });
await page.screenshot({ path: 'page.png', fullPage: true });
await browser.close();Replace https://example.com with a page you can access. If a site never reaches network idle, use a deliberate wait condition appropriate to that page instead. Check the screenshot at the viewport and state that matter; one image cannot establish accessibility-tree behavior, so test assistive technology separately.
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Troubleshoot common display issues
- A flex or grid container behaves like a block: This is expected for
flexandgrid; their default outer type is block. Useinline-flexorinline-gridif the container should participate inline. - An inline element does not behave like a box in the way you expect: Check whether you need
inline-blockto keep inline participation while using block formatting behavior inside. - Floated children extend beyond the apparent container: Apply
display: flow-rootto the container to establish a block formatting context that contains internal floats. - Hidden content still leaves a gap:
visibilityretains layout space. Usedisplay: nonewhen the element and its descendants should not participate in layout. - Content remains after applying
display: contents: That is expected: the element’s own box is removed, but its child boxes remain. - A table’s screen-reader behavior changes after a display override: Restore semantic table markup and test the target browser and assistive technology; CSS display changes can affect accessibility-tree representation in some browsers.
- A newer or unusual display value has no effect in a target browser: Check compatibility for that specific value and provide a fallback that suits your supported browser matrix.
Frequently Asked Questions
Does display: flex make the element itself inline?
No. flex uses a block-level outer box and flex layout for its children; use inline-flex for an inline-level flex container.
Is inline-block the same as inline flex?
No. inline-block is equivalent to inline flow-root; inline flex lays out children with flexbox.
Does display: contents hide an element’s children?
No. It removes the element’s own box while child boxes remain in layout.
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