In these examples the .themed-grid-col
class is added to the columns to add some theming. This is NOT a class that is available in Bootstrap by default.
Five grid tiers
( Bootstrap 5.3.3 )
There are five tiers to the grid system, one for each range of devices supported. Each tier starts at a minimum viewport size and automatically applies to the larger devices unless overridden.
Three equal columns
Get three equal-width columns starting at desktops and scaling to large desktops. On mobile devices, tablets and below, the columns will automatically stack.
Three equal columns alternative
By using the .row-cols-*
classes, you can easily create a grid with equal columns.
.col
child of .row-cols-md-3
.col
child of .row-cols-md-3
.col
child of .row-cols-md-3
Three unequal columns
Get three columns starting at desktops and scaling to large desktops of various widths. Remember, grid columns should add up to twelve for a single horizontal block. More than that, and columns start stacking no matter the viewport.
Two columns
Get two columns starting at desktops and scaling to large desktops.
Full width, single column
No grid classes are necessary for full-width elements.
Two columns with two nested columns
Per the documentation, nesting is easy—just put a row of columns within an existing column. This gives you two columns starting at desktops and scaling to large desktops, with another two (equal widths) within the larger column.
At mobile device sizes, tablets and down, these columns and their nested columns will stack.
Mixed: mobile and desktop
The Bootstrap v4 grid system has five tiers of classes: xs (extra small, this class infix is not used), sm (small), md (medium), lg (large), and xl (extra large). You can use nearly any combination of these classes to create more dynamic and flexible layouts.
Each tier of classes scales up, meaning if you plan on setting the same widths for md, lg and xl, you only need to specify md.
Mixed: mobile, tablet, and desktop
Gutters
With .gx-*
classes, the horizontal gutters can be adjusted.
.col
with .gx-4
gutters.col
with .gx-4
gutters.col
with .gx-4
gutters.col
with .gx-4
gutters.col
with .gx-4
gutters.col
with .gx-4
guttersUse the .gy-*
classes to control the vertical gutters.
.col
with .gy-4
gutters.col
with .gy-4
gutters.col
with .gy-4
gutters.col
with .gy-4
gutters.col
with .gy-4
gutters.col
with .gy-4
guttersWith .g-*
classes, the gutters in both directions can be adjusted.
.col
with .g-3
gutters.col
with .g-3
gutters.col
with .g-3
gutters.col
with .g-3
gutters.col
with .g-3
gutters.col
with .g-3
guttersContainers
Additional classes added in Bootstrap v4.4 allow containers that are 100% wide until a particular breakpoint. v5 adds a new xxl
breakpoint.