CSS Grid and Flexbox: Modern Layout Techniques

发布时间：2026-04-06 16:19:47

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文章标签： CSS Grid Flexbox layout responsive

CSS Grid and Flexbox are the modern layout standards. Grid handles two-dimensional layouts while Flexbox handles one-dimensional flow.

## Flexbox

Flexbox is perfect for aligning items in a row or column. Use display flex with justify-content and align-items for positioning.

Key properties: flex-direction, justify-content, align-items, flex-wrap, gap, flex-grow, flex-shrink, flex-basis.

Common pattern: Center content with display flex, justify-content center, align-items center.

## CSS Grid

Grid handles complex two-dimensional layouts with rows and columns.

Key properties: grid-template-columns, grid-template-rows, grid-gap, grid-area.

Responsive grid: repeat(auto-fit, minmax(250px, 1fr)) creates a responsive layout automatically.

## When to Use Each

- Flexbox: Navigation bars, card rows, centering content
- Grid: Page layouts, dashboards, galleries
- Both can be combined: Grid for page layout, Flexbox for component internals

Modern CSS layout is powerful. Master both Grid and Flexbox to build any layout without hacks.