# Bootstrap

Bricks comes with a built-in integration with Bootstrap 5, which is included as a NPM package and is compiled from its source files.

The template files already include components and classes from this framework, making it easy to quickly start a new project.


Bootstrap's CSS is included from its source Sass files.

With this method, it is possible to create a custom Bootstrap theme. A subset of all Bootstrap variables used during compilation is available in src/sass/_theme.scss, which in turn is automatically loaded in to the main style.scss file.

This file includes all the most important utility variables sourced directly from node_modules/bootstrap/scss/_variables.scss, allowing to customize colors, typography, layout and set general options (read more about customizing Bootstrap (opens new window) in its official documentation).

Variables pertaining to single components should be included manually. You can refer to the official Bootstrap Documentation for variables used in each component (i.e. https://getbootstrap.com/docs/5.0/components/buttons/#variables), if you need to customize them you can copy/paste and customize these variables directly inside src/sass/_theme.scss.


You are strongly encouraged to take advantage of this feature: with a Bootstrap custom theme a great deal of styling can be made directly from the source, this way less custom CSS rules are required afterwards. This allows for an easier development experience and better performances, thanks to a smaller final CSS bundle.

The final CSS bundle is further processed and optimized with tools like Autoprefixer, PurgeCSS and CSSnano, then loaded from functions/enqueues.php (more info about the whole compilation process on CSS page of this documentation).

# JavaScript

Just like CSS, Bootstrap's JavaScript is included from the source package.

The scripts are included from src/js/bootstrap.js, which includes both Bootstrap and its required dependency Popper.js, then loaded from functions/enqueues.php (more info about this on JavaScript page of this documentation).

By default the full Bootstrap is included, this should be the optimal option for most projects.

If you need to fine tune which components to include to reduce the size of the final bundle, you should comment the follwing line

import 'bootstrap';

and uncomment only the component thet you need to import, i.e.

import Alert from 'bootstrap/js/dist/alert';
import Button from 'bootstrap/js/dist/button';
// import Carousel from 'bootstrap/js/dist/carousel';
// import Collapse from 'bootstrap/js/dist/collapse';
import Dropdown from 'bootstrap/js/dist/dropdown';
// import Modal from 'bootstrap/js/dist/modal';
// import Offcanvas from 'bootstrap/js/dist/offcanvas';
// import Popover from 'bootstrap/js/dist/popover';
// import ScrollSpy from 'bootstrap/js/dist/scrollspy';
// import Tab from 'bootstrap/js/dist/tab';
// import Toast from 'bootstrap/js/dist/toast';
// import Tooltip from 'bootstrap/js/dist/tooltip';


You should choose only one option, do not include both the full Boostrap package and single components individually. Read Bootstrap Docs (opens new window) for more details.