Flexbox is a one-dimensional layout system in CSS.
1. Container Properties
.container {
display: flex;
justify-content: center;
align-items: center;
}
2. Item Properties
.item {
flex: 1;
order: 2;
}
3. Common Patterns
- Horizontal center alignment
- Vertical stacking
- Equal-width items
Conclusion
Flexbox is essential for responsive design and layout control.

Flexbox finally makes layout easier than old float hacks!