bootstrap-vite

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Bootstrap 6 with Vite

Set up a Bootstrap 6 project bundled with Vite. Requires Node.js and terminal familiarity.

Workflow

[ ] Step 1: Set up npm and install dependencies
[ ] Step 2: Create the project structure
[ ] Step 3: Configure Vite
[ ] Step 4: Import Bootstrap's CSS and JS
[ ] Step 5: Verify

Step 1: Set up npm and install dependencies

Create the project and initialize npm:

   mkdir my-project && cd my-project
   npm init -y

Install Vite:

   npm i --save-dev vite

Install Bootstrap and its optional peer dependencies (omit @floating-ui/dom if not using menus/popovers/tooltips; omit vanilla-calendar-pro if not using the datepicker):

   npm i --save bootstrap@6.0.0-alpha.1 @floating-ui/dom vanilla-calendar-pro

Install Sass to compile Bootstrap's source:

   npm i --save-dev sass

Step 2: Create the project structure

mkdir {src,src/js,src/scss}
touch src/index.html src/js/main.js src/scss/styles.scss vite.config.js

Target layout:

text

my-project/
├── src/
│   ├── js/
│   │   └── main.js
│   ├── scss/
│   │   └── styles.scss
│   └── index.html
├── package-lock.json
├── package.json
└── vite.config.js

Step 3: Configure Vite

vite.config.js:

   import path from 'path'

   export default {
     root: path.resolve(__dirname, 'src'),
     build: {
       outDir: '../dist'
     },
     server: {
       port: 8080
     }
   }

src/index.html — load the entry module:

html

   <!doctype html>
   <html lang="en">
     <head>
       <meta charset="utf-8">
       <meta name="viewport" content="width=device-width, initial-scale=1">
       <title>Bootstrap w/ Vite</title>
       <script type="module" src="./js/main.js"></script>
     </head>
     <body>
       <div class="container py-4 px-3 mx-auto">
         <h1>Hello, Bootstrap and Vite!</h1>
         <button class="btn-solid theme-primary">Primary button</button>
       </div>
     </body>
   </html>

package.json — add the start script:

json

   {
     "scripts": {
       "start": "vite",
       "test": "echo \"Error: no test specified\" && exit 1"
     }
   }

Start Vite:

   npm start

Step 4: Import Bootstrap's CSS and JS

src/scss/styles.scss — import the source Sass with @use (never @import):

scss

   // Import all of Bootstrap's CSS
   @use "bootstrap/scss/bootstrap";

To customize, override Bootstrap's CSS token maps ($root-tokens, $*-tokens) — see Customize › Sass. Token names are written unprefixed in Sass; Bootstrap's dist/CDN CSS adds the --bs- prefix via PostCSS, so compiling the source yourself keeps them unprefixed.

src/js/main.js — load the CSS and import Bootstrap's JS. Floating UI and Vanilla Calendar Pro are imported automatically through Bootstrap:

   // Import our custom CSS, then all of Bootstrap’s JS
   import '../scss/styles.scss'
   import * as bootstrap from 'bootstrap'

Import only the plugins you need to keep bundle sizes down:

   import { Tooltip, Toast, Popover } from 'bootstrap'

Step 5: Verify

Run npm start and open http://localhost:8080 — the .container and .btn-solid.theme-primary button should be styled.
Confirm the browser console is free of module-resolution errors (Bootstrap, Floating UI, Vanilla Calendar Pro).
Trigger a JS component (tooltip/dialog) to confirm the JS bundle works.
Bootstrap 6 requires a browser that supports oklch() and color-mix().

For an optimized build that imports only the parts of Bootstrap you use, see the twbs/examples Vite project.