HTML & CSS

Flexbox vs Grid

Choose flexbox for one-dimensional alignment and grid for two-dimensional layout. This guide shows how to decide quickly, avoid common layout mistakes and connect the choice to real page sections.

What this workflow solves

Target outcome

A practical decision process for choosing flexbox or grid without overcomplicating responsive layouts.

Work through Flexbox vs Grid

Track each step, focus the current task and copy a starter outline for your project notes or implementation plan.

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Identify the layout direction

The quickest decision is whether the layout is mostly a row or column, or whether both rows and columns matter.

  • Use flexbox for navbars, toolbars, button rows and simple stacks.
  • Use grid for card layouts, dashboards and section grids.
  • Use both when a grid item contains its own flex row.
Starter codeCopy and adapt this outline for the workflow.
<section aria-labelledby="flexbox-vs-grid-title">
  <p>Flexbox vs Grid</p>
  <h2 id="flexbox-vs-grid-title">Flexbox vs Grid</h2>
  <p>A practical decision process for choosing flexbox or grid without overcomplicating responsive layouts.</p>
  <ol>
    <li>Identify the layout direction</li>
    <li>Handle spacing with gap</li>
    <li>Make the layout responsive</li>
  </ol>
</section>

Choose flexbox or grid

Select the layout job and get a practical recommendation, preview and starter CSS.

RecommendationFlexbox

Use flexbox when the main task is arranging items in one row or one column.

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Generated output
.layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

Work this way

These are the patterns that keep the workflow practical, accessible and easier to maintain.

Use flexbox for navbars, toolbars, button rows and simple stacks.
Set gap on the parent layout container.
Stack grid columns on mobile.

Avoid these traps

Starting with visual styling before the semantic structure is clear.
Using fixed widths that create mobile overflow.
Hiding important navigation or content without a usable fallback.

Step-by-step workflow

Follow the steps in order, then use the resource sections when you need a tool, reference or UI pattern.

1

Identify the layout direction

The quickest decision is whether the layout is mostly a row or column, or whether both rows and columns matter.

  • Use flexbox for navbars, toolbars, button rows and simple stacks.
  • Use grid for card layouts, dashboards and section grids.
  • Use both when a grid item contains its own flex row.
2

Handle spacing with gap

Both flexbox and grid support gap, which keeps spacing predictable without child margin tricks.

  • Set gap on the parent layout container.
  • Avoid first-child and last-child margin cleanup when gap is enough.
  • Use consistent spacing values across sections.
3

Make the layout responsive

Responsive layouts should simplify at small widths before they overflow or squeeze content.

  • Stack grid columns on mobile.
  • Allow flex rows to wrap when content can grow.
  • Avoid fixed widths for cards and navigation items.

Tools, cheatsheets and components

Use these linked DevKitYard sections when the guide moves from planning to doing.

Experiment with layouts in ElementYard

Use ElementYard when you want to visually test section structure and spacing.

Open ElementYard

Flexbox vs Grid questions

Should I use flexbox or grid for cards?

Use grid for repeated card layouts where columns and rows matter. Use flexbox inside each card when you need internal alignment.

Can flexbox and grid be used together?

Yes. Many practical layouts use grid for the outer section and flexbox for navigation, buttons or content inside each grid item.