december includes Bootstrap's responsive, mobile-first fluid grid system that appropriately scales up to 12 columns as the device or viewport size increases. It includes predefined classes for easy layout options, as well as powerful mixins for generating more semantic layouts.
|Extra small devices Phones (<768px)||Small devices Tablets (≥768px)||Medium devices Desktops (≥992px)||Large devices Desktops (≥1200px)|
|Grid behavior||Horizontal at all times||Collapsed to start, horizontal above breakpoints|
|Max container width||None (auto)||100%||100%||100%|
|# of columns||12|
|Max column width||Auto||60px||78px||95px|
|Gutter width||20px (10px on each side of a column)|
Using a single set of
.col-md-* grid classes, you can create a basic grid system that starts out stacked on mobile devices and tablet devices (the extra small to small range) before becoming horizontal on desktop (medium) devices.
Combining Mobile with Desktop
Don't want your columns to simply stack in smaller devices? Use the extra small and medium device grid classes by adding
.col-md-* to your columns. See the example below for a better idea of how it all works.
Mobile, tablet, and desktop
Build on the previous example by creating even more dynamic and powerful layouts with tablet
Move columns to the right using
.col-md-offset-* classes. These classes increase the left margin of a column by * columns. For example,
.col-md-4 over four columns.
To nest your content with the default grid, add a new
.row and set of
.col-md-* columns within an existing
.col-md-* column. Nested rows should include a set of columns that add up to 12.
Easily change the order of our built-in grid columns with
.col-md-pull-* modifier classes.
Responsive Same Height Columns
december contains an extension of Bootstrap's responsive mobile first layout which adds same height column support with the ability to chose vertical alignment just with a few additional classes.
You have to add the classes
.row-xs-height to the container and the row, and also add
.col-xs-height to the columns.
<div class="container container-xs-height"> <div class="row row-xs-height"> <div class="col-xs-6 col-xs-height"></div> <div class="col-xs-3 col-xs-height col-top"></div> <div class="col-xs-2 col-xs-height col-middle"></div> <div class="col-xs-1 col-xs-height col-bottom"></div> </div> </div>
If you want to restrict the effect to a certain media query, just use
.col-lg-height, also replacing xs in the container and in the row classes. You can also use different column sizes on each media query.
<div class="container container-sm-height"> <div class="row row-sm-height"> <div class="col-xs-12 col-sm-6 col-sm-height"></div> <div class="col-xs-6 col-sm-3 col-sm-height col-top"></div> <div class="col-xs-6 col-sm-2 col-sm-height col-middle"></div> <div class="col-xs-6 col-sm-1 col-sm-height col-bottom"></div> </div> </div>
You choose the aligment of each column by using the classes
Only on 1200px+
Only on 992px+
Only on 768px+
row classes, you can place the columns with no gutter. Handy for fine tuning your custom apps!