Grid Fundamentals
CSS Grid is a two-dimensional layout system:
- Define rows and columns simultaneously
- Grid container and grid items
- display: grid activates grid layout
- Grid template areas for semantic layouts
Defining Grid Structure
Create grid layouts using:
- grid-template-columns: Define column widths
- grid-template-rows: Define row heights
- fr unit: Fractional grid units
- repeat(): Repeat patterns
- minmax(): Flexible sizing
Positioning Grid Items
Control item placement:
- grid-column: span columns
- grid-row: span rows
- grid-area: Named grid areas
- Auto-placement: Browser determines position
Responsive Grid Layouts
Build responsive designs:
- auto-fit: Fit columns to container
- auto-fill: Fill available space
- Media queries for breakpoints
- Responsive grid gaps
Flexbox vs Grid
Choose the right tool:
- Flexbox: One-dimensional layouts
- Grid: Two-dimensional layouts
- Combined: Use both together
- Grid for overall layout, Flexbox for components
Best Practices
- Use semantic HTML with Grid
- Mobile-first responsive design
- Named grid areas for clarity
- Browser fallbacks for older browsers
Conclusion
CSS Grid transforms web layout design with powerful two-dimensional control, enabling developers to create complex, responsive layouts with minimal code and maximum flexibility.