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Use Flexbox when you need to arrange items along one main axis—a row or a column. Use CSS Grid when rows and columns need to work together. If a Flexbox layout wraps, each line still sizes and distributes its items independently; Grid keeps items aligned to shared tracks. Many interfaces use both: Grid for the overall arrangement and Flexbox inside individual components.
What is the difference between Flexbox and CSS Grid?
Flexbox is one-dimensional: you arrange items along a row or a column, then control how they align and share available space on that axis. Grid is two-dimensional: you define rows and columns together and place items into that track structure, either explicitly or through automatic placement. MDN explains the distinction in its comparison of Grid with other layout methods.
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A useful way to think about the difference is content-out versus layout-in. Flexbox is a natural fit when item content should influence how space is shared along the chosen axis. With Grid, the track structure establishes the layout, and items occupy those tracks.
When should you use Flexbox?
Choose Flexbox when the main relationship you need to manage is a single sequence of items. It is especially useful when the items’ sizes and the available space should influence how they fit along that axis.
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- Navigation: Arrange links in a row and align them within the available space.
- Toolbars and control rows: Keep buttons or other controls in a row, with alignment and spacing managed along that line.
- Content inside a component: Align an icon, label, or action along one axis, or stack a card’s contents in a column.
These are common patterns, not restrictions. MDN’s Flexbox use cases include navigation and one-axis arrangements.
When should you use CSS Grid?
Choose Grid when the relationship between rows and columns matters. Its shared tracks are useful when items in different rows need to line up in the same columns, or when you want the overall layout to define how space is divided in both dimensions.
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- Responsive card or product listings: Create columns that adapt to the available width while maintaining consistent tracks.
- Page regions: Coordinate areas across rows and columns rather than arranging a single sequence.
- Layouts with shared alignment: Keep items in different rows aligned to the same column structure.
For example, this rule lets as many columns as fit into the container, with each column at least 200 pixels wide and able to grow to share the space:
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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitches.listing {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}MDN uses this responsive listing approach in its guide to realizing common layouts with Grid. The minimum width is a design choice for this example, not a universal breakpoint.
Why wrapped Flexbox is not the same as Grid
A Flexbox container can wrap items onto multiple lines, which may look like a grid. But wrapping does not make the lines share column tracks: each flex line distributes its own items independently. If a final line contains fewer items, those items can end up wider or spaced differently than items above them.
Grid preserves shared columns across rows. When items in one row need to align with items above or below, use Grid rather than relying on wrapped Flexbox. MDN describes this distinction in its guide to wrapping Flexbox items.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Can you combine Flexbox and Grid?
Yes. They solve different parts of a layout, so using them together is often practical. A card listing can use Grid for its outer columns and Flexbox within each card to stack the content or position an action. For instance:
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.listing {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
gap: 1rem;
}
.card {
display: flex;
flex-direction: column;
}
.card a {
margin-top: auto;
}Here, Grid manages the listing’s shared columns. Each card uses a column Flexbox layout, and the auto margin pushes the link toward the bottom of that card. MDN discusses how the layout methods can work together in its guide to the relationship between Flexbox and other layout methods.
Should you pick based on component size?
No. Flexbox is not only for small components, and Grid is not only for large page layouts. MDN Web Docs explicitly says there are no fixed rules assigning Flexbox to small components and Grid to larger ones. Choose according to the layout behavior you need: one axis, or coordinated rows and columns.
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