# UX4G Layout
Layout primitives for building responsive government interfaces: container, grid system, and flex/grid utilities.
## Container
Use `ux4g-container` to center content and manage page width.
```html
```
## Grid system
UX4G provides a responsive grid. Combine `ux4g-grid`, row, and column classes.
```html
```
## Flex/Grid layout utilities
For simpler alignments, use utility classes such as `ux4g-d-flex`, `ux4g-jc-center`, `ux4g-ai-center`, `ux4g-gap-m`.