Options for structuring your pages with Bootstrap, including global styles, required scaffolding, grid system, and more.
Bootstrap includes several components and options for laying out your project, including wrapping containers, a powerful grid system, a flexible media object, and responsive utility classes.
Containers are the most basic layout element in Bootstrap and are required when using our grid system. Choose from a responsive, fixed-width container (meaning its max-width changes at each breakpoint) or fluid-width (meaning it’s 100% wide all the time).
While containers can be nested, most layouts do not require a nested container.
Use .container-fluid for a full width container, spanning the entire width of the viewport.
Since Bootstrap is developed to be mobile first, we use a handful of media queries to create sensible breakpoints for our layouts and interfaces. These breakpoints are mostly based on minimum viewport widths and allow us to scale up elements as the viewport changes.
Bootstrap primarily uses the following media query ranges—or breakpoints—in our source Sass files for our layout, grid system, and components.
Since we write our source CSS in Sass, all our media queries are available via Sass mixins:
We occasionally use media queries that go in the other direction (the given screen size or smaller):
Once again, these media queries are also available via Sass mixins:
We also have media between the breakpoint’s minimum and maximum widths for only the given screen size:
These media queries are also available via Sass mixins:
And finally media that spans multiple breakpoint widths:
The Sass mixin for the above example look like that shown beneath: