How they work
Containers are the most basic layout element in Bootstrap and are required when using our default grid system.
Containers are used to contain, pad, and (sometimes) center the content within them. While containers _can_ be nested, most layouts do not require a nested container.
Bootstrap comes with three different containers:
Container, which sets amax-widthat each responsive breakpoint.type="fluid", which iswidth: 100%at all breakpointstype="{breakpoint}", which iswidth: 100%until the specified breakpoint
The table below illustrates how each container's max-width compares to the original Container and type="fluid" across each breakpoint.
| Extra small <576px | Small ≥576px | Medium ≥768px | Large ≥992px | X-Large ≥1200px | XX-Large ≥1400px | |
|---|---|---|---|---|---|---|
container | 100% | 540px | 720px | 960px | 1140px | 1320px |
container-sm | 100% | 540px | 720px | 960px | 1140px | 1320px |
container-md | 100% | 100% | 720px | 960px | 1140px | 1320px |
container-lg | 100% | 100% | 100% | 960px | 1140px | 1320px |
container-xl | 100% | 100% | 100% | 100% | 1140px | 1320px |
container-xxl | 100% | 100% | 100% | 100% | 100% | 1320px |
container-fluid | 100% | 100% | 100% | 100% | 100% | 100% |
Default container
Our default Container class is a responsive, fixed-width container, meaning its max-width changes at each breakpoint.
Responsive containers
Responsive containers allow you to specify a class that is 100% wide until the specified breakpoint is reached, after which we apply max-widths for each of the higher breakpoints.
For example, type="sm" is 100% wide to start until the sm breakpoint is reached, where it will scale up with md, lg, xl, and xxl.
Fluid containers
Use type="fluid" for a full width container, spanning the entire width of the viewport.