Bootstrap is made to not only look and behave great in the latest desktop browsers, but in tablet and smartphone browsers too. It’s packed with features; a 12-column responsive grid, dozens of components, plugins and more!.
Bootstrap supports a handful of media queries in a single file to help make your projects more appropriate on different devices and screen resolutions. Here’s what’s included:
|Label||Layout width||Column width||Gutter width|
|Smartphones||480px and below||Fluid columns, no fixed widths|
|Smartphones to tablets||767px and below||Fluid columns, no fixed widths|
|Portrait tablets||768px and above||42px||20px|
|Default||980px and up||60px||20px|
|Large display||1200px and up||70px||30px|
The default grid system is a 12-column grid. It also has four responsive variations for various devices and resolutions: phone, tablet portrait, table landscape and small desktops, and large widescreen desktops.
[column width="1/3"]...[column] [column width="2/3"]...[column]
As shown here, a basic layout can be created with two «columns,» each spanning a number of the 12 foundational columns defined as part of the grid system.
[column width="1/4"]...[column] [column width="1/4" class="offset4"]...[column]
To nest your content, just add a new
.row and set of
.span* columns within an existing
.span* column. Nested rows should include a set of columns that add up to the number of columns of it’s parent. For example, two nested
.span3 columns should be placed within a
[column width="1/1"] Level 1 of column [column width="1/2"]Level 2[/column] [column width="1/2"]Level 2[/column][/column] [/row]
For faster mobile-friendly development, use these basic utility classes for showing and hidding content by device.
Use on a limited basis and avoid creating entirely different versions of the same site. Instead, use them to complement each device’s presentation.
For example, you might show a
<select> element for nav on mobile layouts, but not on tablets or desktops.
Shown here is a table of the classes we support and their effect on a given media query layout (labeled by device). They can be found in
|Class||Phones 480px and below||Tablets 767px and below||Desktops 768px and above|