bootstrap-vite

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:

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:

<!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:

{
  "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):
```
// 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.