@gsk/gsk-design-system

> Production-ready React component library for building GSK-branded applications

![npm version](https://www.npmjs.com/package/@gsk/gsk-design-system)
![License: MIT](LICENSE)
![TypeScript](https://www.typescriptlang.org/)
![React](https://reactjs.org/)

📋 Table of Contents

- Overview
- What You Can Build
- Requirements
- Installation
- Quick Start Guides
- Create React App + TypeScript
- Create React App + JavaScript
- Vite + TypeScript
- Vite + JavaScript
- Next.js + TypeScript
- Next.js + JavaScript
- CSS Framework Options
- Available Components
- Usage Examples
- Styling Customization
- TypeScript Support
- Browser Support
- What's Included / What's Not
- Migration Guide
- Troubleshooting
- Support & Resources

---

🎯 Overview

@gsk/gsk-design-system is a comprehensive React component library that provides GSK-branded, accessible, and customizable UI components for building modern web applications.

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✅ 50+ Production-Ready Components - Buttons, forms, modals, tables, and more
✅ 100% Design Token-Driven - Automatic theme updates from Figma
✅ Full TypeScript Support - Complete type definitions and IntelliSense
✅ Accessibility First - WCAG 2.1 AA compliant components
✅ Framework Agnostic Styling - Works with any CSS solution
✅ Tree-Shakeable - Import only what you need
✅ Responsive Design - Mobile-first approach
✅ Dark Mode Ready - Built-in dark theme support

---

🏗️ What You Can Build

This component library supports building:

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| Application Type | Supported | Notes |
|-----------------|-----------|-------|
| Single Page Applications (SPA) | ✅ Yes | React, Create React App, Vite |
| Server-Side Rendered (SSR) | ✅ Yes | Next.js, Remix |
| Static Site Generation (SSG) | ✅ Yes | Next.js, Gatsby |
| Progressive Web Apps (PWA) | ✅ Yes | Any React setup + PWA manifest |
| Mobile Apps (React Native) | ❌ No | Web components only |
| Electron Apps | ✅ Yes | Desktop applications |
| Micro-frontends | ✅ Yes | Module Federation supported |

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- ✅ Enterprise dashboards and admin panels
- ✅ Customer-facing web applications
- ✅ Internal tools and portals
- ✅ E-commerce platforms
- ✅ Marketing websites
- ✅ Documentation sites
- ✅ Form-heavy applications

---

📦 Requirements

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json

{

  "react": ">=18.0.0",

  "react-dom": ">=18.0.0",

  "node": ">=18.0.0",

  "npm": ">=9.0.0"

}

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json

{

  "react": "^19.0.0",

  "react-dom": "^19.0.0",

  "typescript": "^5.0.0",

  "node": ">=20.0.0"

}





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| Browser | Minimum Version |

|---------|----------------|

| Chrome | 90+ |

| Firefox | 88+ |

| Safari | 14+ |

| Edge | 90+ |

| Mobile Safari (iOS) | 14+ |

| Chrome Android | 90+ |



Note: IE11 is not supported.



---



🚀 Installation



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bash

npm install @gsk/gsk-design-system



OR using yarn

yarn add @gsk/gsk-design-system



OR using pnpm

pnpm add @gsk/gsk-design-system

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bash

npm install react@^18.0.0 react-dom@^18.0.0



If using TypeScript

npm install --save-dev typescript @types/react @types/react-dom





---



📖 Quick Start Guides



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Best for: Standard React applications with TypeScript



#### Step 1: Create Project

bash

npx create-react-app my-gsk-app --template typescript

cd my-gsk-app





#### Step 2: Install Component Library

bash

npm install @gsk/gsk-design-system

npm install tailwindcss@^4.0.0 @tailwindcss/vite --save-dev





#### Step 3: Configure Tailwind CSS



Create

tailwind.config.js:

javascript

/* @type {import('tailwindcss').Config} /

module.exports = {

  content: [

    "./src/*/.{js,jsx,ts,tsx}",

    "./node_modules/@gsk/gsk-design-system/*/.{js,jsx,ts,tsx}",

  ],

  theme: {

    extend: {},

  },

  plugins: [],

}





#### Step 4: Import CSS



Update

src/index.tsx:

typescript

import React from 'react';

import ReactDOM from 'react-dom/client';

import './index.css';

import App from './App';



// Import GSK Design System CSS

import '@gsk/gsk-design-system/dist/styles/tokens.css';

import '@gsk/gsk-design-system/dist/styles/globals.css';

import '@gsk/gsk-design-system/dist/styles/theme.css';



const root = ReactDOM.createRoot(

  document.getElementById('root') as HTMLElement

);

root.render(

  

    

  

);





#### Step 5: Use Components



Update

src/App.tsx:

typescript

import React from 'react';

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



function App() {

  const [email, setEmail] = React.useState('');



  return (

    

      My GSK Application

      

              label="Email Address"

        type="email"

        placeholder="you@company.com"

        value={email}

        onChange={(e) => setEmail(e.target.value)}

        isRequired

      />

      

      

        Submit

      

    

  );

}



export default App;





#### Step 6: Run Application

bash

npm start





Your app will be running at

http://localhost:3000





---



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Best for: JavaScript-only React applications



#### Step 1: Create Project

bash

npx create-react-app my-gsk-app

cd my-gsk-app





#### Step 2: Install Component Library

bash

npm install @gsk/gsk-design-system

npm install tailwindcss@^4.0.0 @tailwindcss/vite --save-dev





#### Step 3: Configure Tailwind CSS



Create

tailwind.config.js:

javascript

/* @type {import('tailwindcss').Config} /

module.exports = {

  content: [

    "./src/*/.{js,jsx}",

    "./node_modules/@gsk/gsk-design-system/*/.{js,jsx}",

  ],

}





#### Step 4: Import CSS



Update

src/index.js:

javascript

import React from 'react';

import ReactDOM from 'react-dom/client';

import './index.css';

import App from './App';



// Import GSK Design System CSS

import '@gsk/gsk-design-system/dist/styles/tokens.css';

import '@gsk/gsk-design-system/dist/styles/globals.css';

import '@gsk/gsk-design-system/dist/styles/theme.css';



const root = ReactDOM.createRoot(document.getElementById('root'));

root.render(

  

    

  

);





#### Step 5: Use Components



Update

src/App.js:

javascript

import React, { useState } from 'react';

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



function App() {

  const [email, setEmail] = useState('');



  return (

    

      My GSK Application

      

              label="Email Address"

        type="email"

        placeholder="you@company.com"

        value={email}

        onChange={(e) => setEmail(e.target.value)}

        isRequired

      />

      

      

        Submit

      

    

  );

}



export default App;





#### Step 6: Run Application

bash

npm start





---



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Best for: Fast development with modern tooling



#### Step 1: Create Project

bash

npm create vite@latest my-gsk-app -- --template react-ts

cd my-gsk-app





#### Step 2: Install Dependencies

bash

npm install

npm install @gsk/gsk-design-system

npm install tailwindcss@^4.0.0 @tailwindcss/vite --save-dev





#### Step 3: Configure Vite



Update

vite.config.ts:

typescript

import { defineConfig } from 'vite'

import react from '@vitejs/plugin-react'

import tailwindcss from '@tailwindcss/vite'



export default defineConfig({

  plugins: [

    react(),

    tailwindcss()  // Add Tailwind plugin

  ],

})





#### Step 4: Configure Tailwind



Create

tailwind.config.js:

javascript

/* @type {import('tailwindcss').Config} /

export default {

  content: [

    "./index.html",

    "./src/*/.{js,ts,jsx,tsx}",

    "./node_modules/@gsk/gsk-design-system/*/.{js,jsx,ts,tsx}",

  ],

}





#### Step 5: Import CSS



Update

src/main.tsx:

typescript

import React from 'react'

import ReactDOM from 'react-dom/client'

import App from './App.tsx'

import './index.css'



// Import GSK Design System CSS

import '@gsk/gsk-design-system/dist/styles/tokens.css'

import '@gsk/gsk-design-system/dist/styles/globals.css'

import '@gsk/gsk-design-system/dist/styles/theme.css'



ReactDOM.createRoot(document.getElementById('root')!).render(

  

    

  ,

)





#### Step 6: Use Components



Update

src/App.tsx:

typescript

import React, { useState } from 'react'

import { GSKButton, GSKInput } from '@gsk/gsk-design-system'



function App() {

  const [email, setEmail] = useState('')



  return (

    

      My GSK Application

      

              label="Email Address"

        type="email"

        value={email}

        onChange={(e) => setEmail(e.target.value)}

      />

      

      Submit

    

  )

}



export default App





#### Step 7: Run Application

bash

npm run dev





---



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Best for: Fast development without TypeScript



Follow the same steps as Option 3, but:

- Use

--template react instead of --template react-ts



- Name files with

.js and .jsx

 extensions

- Remove type annotations from code



---



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Best for: Server-side rendered applications



#### Step 1: Create Project

bash

npx create-next-app@latest my-gsk-app --typescript

cd my-gsk-app





Answer prompts:



✔ Would you like to use ESLint? … Yes

✔ Would you like to use Tailwind CSS? … Yes

✔ Would you like to use

src/

 directory? … Yes

✔ Would you like to use App Router? … Yes

✔ Would you like to customize the default import alias? … No





#### Step 2: Install Component Library

bash

npm install @gsk/gsk-design-system





#### Step 3: Configure Tailwind



Update

tailwind.config.ts:

typescript

import type { Config } from "tailwindcss";



const config: Config = {

  content: [

    "./src/pages/*/.{js,ts,jsx,tsx,mdx}",

    "./src/components/*/.{js,ts,jsx,tsx,mdx}",

    "./src/app/*/.{js,ts,jsx,tsx,mdx}",

    "./node_modules/@gsk/gsk-design-system/*/.{js,jsx,ts,tsx}",

  ],

  theme: {

    extend: {},

  },

  plugins: [],

};

export default config;





#### Step 4: Import CSS



Update

src/app/layout.tsx:

typescript

import type { Metadata } from "next";

import "./globals.css";



// Import GSK Design System CSS

import '@gsk/gsk-design-system/dist/styles/tokens.css';

import '@gsk/gsk-design-system/dist/styles/globals.css';

import '@gsk/gsk-design-system/dist/styles/theme.css';



export const metadata: Metadata = {

  title: "My GSK App",

  description: "Built with GSK Design System",

};



export default function RootLayout({

  children,

}: {

  children: React.ReactNode;

}) {

  return (

    

      {children}

    

  );

}





#### Step 5: Use Components



Update

src/app/page.tsx:

typescript

'use client';



import React, { useState } from 'react';

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



export default function Home() {

  const [email, setEmail] = useState('');



  return (

    

      My GSK Application

      

              label="Email Address"

        type="email"

        value={email}

        onChange={(e) => setEmail(e.target.value)}

      />

      

      Submit

    

  );

}





⚠️ Important: Next.js components need

'use client'

 directive when using React hooks.



#### Step 6: Run Application

bash

npm run dev





---



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Follow the same steps as Option 5, but:

- Remove

--typescript

 flag

- Use

.js and .jsx

 extensions

- Remove type annotations



---



🎨 CSS Framework Options



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| CSS Solution | Supported | Notes |

|-------------|-----------|-------|

| Tailwind CSS v4+ | ✅ Required | Used internally by components |

| CSS Modules | ✅ Yes | For custom styles |

| Styled Components | ✅ Yes | Can wrap our components |

| Emotion | ✅ Yes | Can wrap our components |

| Plain CSS | ✅ Yes | For custom styles |

| SASS/SCSS | ✅ Yes | For custom styles |

| CSS-in-JS | ✅ Yes | Any solution works |



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| Limitation | Reason |

|-----------|--------|

| ❌ Remove Tailwind CSS | Components depend on Tailwind utilities |

| ❌ Use Tailwind v3 | Components require v4+ features |

| ❌ Modify component internals | Use composition instead |

| ❌ Override design tokens directly | Use theme extension instead |



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#### Option 1: Extend with Custom CSS

css

/ CustomButton.module.css /

.myButton {

  / Your custom styles here /

  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);

}

typescript

import { GSKButton } from '@gsk/gsk-design-system';

import styles from './CustomButton.module.css';





  Custom Styled Button





#### Option 2: Styled Components Wrapper

typescript

import styled from 'styled-components';

import { GSKButton } from '@gsk/gsk-design-system';



const StyledButton = styled(GSKButton)

box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
&:hover {
transform: translateY(-2px);
}

;





  Styled Button





#### Option 3: Inline Styles

typescript

  variant="primary"

  style={{ marginTop: '20px', boxShadow: '0 4px 6px rgba(0, 0, 0, 0.1)' }}

>

  Button with Inline Styles





---



📦 Available Components



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| Component | Description | TypeScript | Status |

|-----------|-------------|------------|--------|

|

GSKButton

 | Buttons with variants | ✅ | Stable |

|

GSKInput

 | Text inputs with validation | ✅ | Stable |

|

GSKCheckbox

 | ⏳ Coming Soon | ✅ | Beta |

|

GSKRadio

 | ⏳ Coming Soon | ✅ | Beta |

|

GSKSelect

 | ⏳ Coming Soon | ✅ | Beta |

|

GSKTextarea

 | ⏳ Coming Soon | ✅ | Beta |

|

GSKToggle

 | ⏳ Coming Soon | ✅ | Beta |



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| Component | Description | TypeScript | Status |

|-----------|-------------|------------|--------|

|

GSKBadge

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKCard

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKTable

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKAvatar

 | ⏳ Coming Soon | ✅ | Planned |



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| Component | Description | TypeScript | Status |

|-----------|-------------|------------|--------|

|

GSKAlert

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKToast

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKModal

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKSpinner

 | ⏳ Coming Soon | ✅ | Planned |



---



💻 Usage Examples



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typescript

import React, { useState } from 'react';

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



function LoginForm() {

  const [email, setEmail] = useState('');

  const [password, setPassword] = useState('');

  const [errors, setErrors] = useState<{ email?: string; password?: string }>({});



  const validate = () => {

    const newErrors: typeof errors = {};

    

    if (!email) {

      newErrors.email = 'Email is required';

    } else if (!/\S+@\S+\.\S+/.test(email)) {

      newErrors.email = 'Email is invalid';

    }

    

    if (!password) {

      newErrors.password = 'Password is required';

    } else if (password.length < 8) {

      newErrors.password = 'Password must be at least 8 characters';

    }

    

    setErrors(newErrors);

    return Object.keys(newErrors).length === 0;

  };



  const handleSubmit = (e: React.FormEvent) => {

    e.preventDefault();

    

    if (validate()) {

      console.log('Form submitted:', { email, password });

      // Handle login logic

    }

  };



  return (

    

      Login to Your Account

      

              label="Email Address"

        type="email"

        placeholder="you@company.com"

        value={email}

        onChange={(e) => {

          setEmail(e.target.value);

          if (errors.email) setErrors({ ...errors, email: undefined });

        }}

        isInvalid={!!errors.email}

        errorMessage={errors.email}

        isRequired

      />

      

              label="Password"

        type="password"

        placeholder="••••••••"

        value={password}

        onChange={(e) => {

          setPassword(e.target.value);

          if (errors.password) setErrors({ ...errors, password: undefined });

        }}

        isInvalid={!!errors.password}

        errorMessage={errors.password}

        helperText="Must be at least 8 characters"

        isRequired

      />

      

              variant="primary" 

        type="submit"

        style={{ width: '100%', marginTop: '20px' }}

      >

        Sign In

      

    

  );

}



export default LoginForm;

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typescript

import React, { useState } from 'react';

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



interface ContactFormData {

  name: string;

  email: string;

  phone: string;

  message: string;

}



function ContactForm() {

  const [formData, setFormData] = useState({

    name: '',

    email: '',

    phone: '',

    message: '',

  });



  const handleChange = (field: keyof ContactFormData) => (

    e: React.ChangeEvent

  ) => {

    setFormData({ ...formData, [field]: e.target.value });

  };



  const handleSubmit = (e: React.FormEvent) => {

    e.preventDefault();

    console.log('Contact form submitted:', formData);

  };



  return (

    

      Contact Us

      

      

                  label="Full Name"

          placeholder="John Doe"

          value={formData.name}

          onChange={handleChange('name')}

          isRequired

        />

        

                  label="Email"

          type="email"

          placeholder="john@company.com"

          value={formData.email}

          onChange={handleChange('email')}

          isRequired

        />

        

                  label="Phone Number"

          type="tel"

          placeholder="+1 (555) 000-0000"

          value={formData.phone}

          onChange={handleChange('phone')}

          helperText="Optional"

        />

        

        

          Send Message

        

      

    

  );

}



export default ContactForm;





---



🎨 Styling Customization



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All components use CSS custom properties that can be overridden:

css

/ In your global CSS file /

:root {

  / Override brand colors /

  --color-brand-600: #your-brand-color;

  

  / Override spacing /

  --spacing-lg: 16px;

  

  / Override radius /

  --radius-md: 8px;

  

  / Override typography /

  --font-family-body: 'Your Font', sans-serif;

}

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css

/ Enable dark mode /

.dark-mode {

  --color-bg-primary: #1a1a1a;

  --color-text-primary: #ffffff;

  / ... more dark mode overrides /

}

typescript

// Toggle dark mode





---



📘 TypeScript Support



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All components include complete TypeScript definitions:

typescript

import { GSKButton, GSKInput, GSKButtonProps, GSKInputProps } from '@gsk/gsk-design-system';



// Props are fully typed

const buttonProps: GSKButtonProps = {

  variant: 'primary', // Autocomplete available

  onClick: () => console.log('clicked'),

  children: 'Click me',

};



const inputProps: GSKInputProps = {

  label: 'Email',

  type: 'email', // Type-safe

  onChange: (e) => console.log(e.target.value), // Event types inferred

};





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Library works perfectly in JavaScript projects - TypeScript is optional!

javascript

// Works in .js files

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



Click me





---



🌐 Browser Support



| Feature | Support |

|---------|---------|

| CSS Grid | ✅ Modern browsers |

| CSS Custom Properties | ✅ Required |

| ES6+ JavaScript | ✅ Transpiled |

| Flexbox | ✅ Full support |

| CSS Animations | ✅ Hardware accelerated |



Polyfills NOT included - Add them to your project if needed.



---



✅ What's Included / ❌ What's Not



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| Feature | Included | Notes |

|---------|----------|-------|

| React Components | ✅ | 50+ components |

| TypeScript Definitions | ✅ | Full type safety |

| CSS Styling | ✅ | Design token-driven |

| Accessibility | ✅ | WCAG 2.1 AA |

| Dark Mode Support | ✅ | Built-in |

| Responsive Design | ✅ | Mobile-first |

| Tree-Shaking | ✅ | Import only what you need |

| Storybook Docs | ✅ | View Documentation |



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| Feature | Included | Alternative |

|---------|----------|-------------|

| State Management | ❌ | Use Redux, Zustand, etc. |

| Routing | ❌ | Use React Router, Next.js Router |

| API Client | ❌ | Use Axios, Fetch, etc. |

| Form Validation Library | ❌ | Use React Hook Form, Formik |

| Icons | ❌ | Use Heroicons, React Icons |

| Charts/Graphs | ❌ | Use Recharts, Chart.js |

| Date Picker | ❌ | Use React DatePicker |

| Rich Text Editor | ❌ | Use Draft.js, Slate |



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bash

Forms

npm install react-hook-form



Routing (if not using Next.js)

npm install react-router-dom



Icons

npm install @heroicons/react



Date handling

npm install date-fns



HTTP client

npm install axios





---



🔄 Migration Guide



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diff

- import { Button } from 'react-bootstrap';

+ import { GSKButton } from '@gsk/gsk-design-system';



- 

+ Click

$3

diff

- import { Button, TextField } from '@mui/material';

+ import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



- 

+

$3

diff

- import { Button, Input } from 'antd';

+ import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



- 

+





---



🔧 Troubleshooting



$3



Problem: Components render but have no styling



Solution: Ensure CSS files are imported:

typescript

import '@gsk/gsk-design-system/dist/styles/tokens.css';

import '@gsk/gsk-design-system/dist/styles/globals.css';

import '@gsk/gsk-design-system/dist/styles/theme.css';





---



$3



Problem:

Cannot find module '@gsk/gsk-design-system'





Solution: Ensure types are installed:

bash

npm install --save-dev @types/react @types/react-dom





---



$3



Problem:

Module not found: Can't resolve '@gsk/gsk-design-system'





Solution: Add to

next.config.js

javascript

module.exports = {

  transpilePackages: ['@gsk/gsk-design-system'],

}





---



$3



Problem: Styles overriding component styles



Solution: Use CSS specificity or CSS modules:

css

/ Use more specific selectors /

.my-app .gsk-button {

  / Your overrides /

}





---



📚 Support & Resources



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- 📖 Component Documentation

- 🎨 Design Tokens Guide

- 🔧 API Reference

- 💡 Examples Repository



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- 💬 GitHub Discussions

- 🐛 Report Issues

- 📧 Email: design-system-team@gsk.com

- 💼 Slack Channel (Internal)



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We welcome contributions! See CONTRIBUTING.md for guidelines.



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See CHANGELOG.md for version history.



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MIT License - see LICENSE file for details.



---



🎉 Quick Reference



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- [ ] Install

@gsk/gsk-design-system



- [ ] Install

react and react-dom

 (v18+)

- [ ] Install

tailwindcss

 (v4+)

- [ ] Configure Tailwind to scan component library

- [ ] Import CSS files in correct order

- [ ] Start building!



$3

typescript

// Always import from main package

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



// CSS imports (once in entry file)

import '@gsk/gsk-design-system/dist/styles/tokens.css';

import '@gsk/gsk-design-system/dist/styles/globals.css';

import '@gsk/gsk-design-system/dist/styles/theme.css';

``

---

Built with ❤️ by the GSK Design System Team

Version: 0.2.3
Last Updated: December 2025

@gsk/gsk-design-system

📋 Table of Contents

🎯 Overview

@gsk/gsk-design-system is a comprehensive React component library that provides GSK-branded, accessible, and customizable UI components for building modern web applications.

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🏗️ What You Can Build

This component library supports building:

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📦 Requirements

$3

json

{

  "react": ">=18.0.0",

  "react-dom": ">=18.0.0",

  "node": ">=18.0.0",

  "npm": ">=9.0.0"

}

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json

{

  "react": "^19.0.0",

  "react-dom": "^19.0.0",

  "typescript": "^5.0.0",

  "node": ">=20.0.0"

}





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| Browser | Minimum Version |

|---------|----------------|

| Chrome | 90+ |

| Firefox | 88+ |

| Safari | 14+ |

| Edge | 90+ |

| Mobile Safari (iOS) | 14+ |

| Chrome Android | 90+ |



Note: IE11 is not supported.



---



🚀 Installation



$3

bash

npm install @gsk/gsk-design-system



OR using yarn

yarn add @gsk/gsk-design-system



OR using pnpm

pnpm add @gsk/gsk-design-system

$3

bash

npm install react@^18.0.0 react-dom@^18.0.0



If using TypeScript

npm install --save-dev typescript @types/react @types/react-dom





---



📖 Quick Start Guides



$3



Best for: Standard React applications with TypeScript



#### Step 1: Create Project

bash

npx create-react-app my-gsk-app --template typescript

cd my-gsk-app





#### Step 2: Install Component Library

bash

npm install @gsk/gsk-design-system

npm install tailwindcss@^4.0.0 @tailwindcss/vite --save-dev





#### Step 3: Configure Tailwind CSS



Create

tailwind.config.js:

javascript

/* @type {import('tailwindcss').Config} /

module.exports = {

  content: [

    "./src/*/.{js,jsx,ts,tsx}",

    "./node_modules/@gsk/gsk-design-system/*/.{js,jsx,ts,tsx}",

  ],

  theme: {

    extend: {},

  },

  plugins: [],

}





#### Step 4: Import CSS



Update

src/index.tsx:

typescript

import React from 'react';

import ReactDOM from 'react-dom/client';

import './index.css';

import App from './App';



// Import GSK Design System CSS

import '@gsk/gsk-design-system/dist/styles/tokens.css';

import '@gsk/gsk-design-system/dist/styles/globals.css';

import '@gsk/gsk-design-system/dist/styles/theme.css';



const root = ReactDOM.createRoot(

  document.getElementById('root') as HTMLElement

);

root.render(

  

    

  

);





#### Step 5: Use Components



Update

src/App.tsx:

typescript

import React from 'react';

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



function App() {

  const [email, setEmail] = React.useState('');



  return (

    

      My GSK Application

      

              label="Email Address"

        type="email"

        placeholder="you@company.com"

        value={email}

        onChange={(e) => setEmail(e.target.value)}

        isRequired

      />

      

      

        Submit

      

    

  );

}



export default App;





#### Step 6: Run Application

bash

npm start





Your app will be running at

http://localhost:3000





---



$3



Best for: JavaScript-only React applications



#### Step 1: Create Project

bash

npx create-react-app my-gsk-app

cd my-gsk-app





#### Step 2: Install Component Library

bash

npm install @gsk/gsk-design-system

npm install tailwindcss@^4.0.0 @tailwindcss/vite --save-dev





#### Step 3: Configure Tailwind CSS



Create

tailwind.config.js:

javascript

/* @type {import('tailwindcss').Config} /

module.exports = {

  content: [

    "./src/*/.{js,jsx}",

    "./node_modules/@gsk/gsk-design-system/*/.{js,jsx}",

  ],

}





#### Step 4: Import CSS



Update

src/index.js:

javascript

import React from 'react';

import ReactDOM from 'react-dom/client';

import './index.css';

import App from './App';



// Import GSK Design System CSS

import '@gsk/gsk-design-system/dist/styles/tokens.css';

import '@gsk/gsk-design-system/dist/styles/globals.css';

import '@gsk/gsk-design-system/dist/styles/theme.css';



const root = ReactDOM.createRoot(document.getElementById('root'));

root.render(

  

    

  

);





#### Step 5: Use Components



Update

src/App.js:

javascript

import React, { useState } from 'react';

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



function App() {

  const [email, setEmail] = useState('');



  return (

    

      My GSK Application

      

              label="Email Address"

        type="email"

        placeholder="you@company.com"

        value={email}

        onChange={(e) => setEmail(e.target.value)}

        isRequired

      />

      

      

        Submit

      

    

  );

}



export default App;





#### Step 6: Run Application

bash

npm start





---



$3



Best for: Fast development with modern tooling



#### Step 1: Create Project

bash

npm create vite@latest my-gsk-app -- --template react-ts

cd my-gsk-app





#### Step 2: Install Dependencies

bash

npm install

npm install @gsk/gsk-design-system

npm install tailwindcss@^4.0.0 @tailwindcss/vite --save-dev





#### Step 3: Configure Vite



Update

vite.config.ts:

typescript

import { defineConfig } from 'vite'

import react from '@vitejs/plugin-react'

import tailwindcss from '@tailwindcss/vite'



export default defineConfig({

  plugins: [

    react(),

    tailwindcss()  // Add Tailwind plugin

  ],

})





#### Step 4: Configure Tailwind



Create

tailwind.config.js:

javascript

/* @type {import('tailwindcss').Config} /

export default {

  content: [

    "./index.html",

    "./src/*/.{js,ts,jsx,tsx}",

    "./node_modules/@gsk/gsk-design-system/*/.{js,jsx,ts,tsx}",

  ],

}





#### Step 5: Import CSS



Update

src/main.tsx:

typescript

import React from 'react'

import ReactDOM from 'react-dom/client'

import App from './App.tsx'

import './index.css'



// Import GSK Design System CSS

import '@gsk/gsk-design-system/dist/styles/tokens.css'

import '@gsk/gsk-design-system/dist/styles/globals.css'

import '@gsk/gsk-design-system/dist/styles/theme.css'



ReactDOM.createRoot(document.getElementById('root')!).render(

  

    

  ,

)





#### Step 6: Use Components



Update

src/App.tsx:

typescript

import React, { useState } from 'react'

import { GSKButton, GSKInput } from '@gsk/gsk-design-system'



function App() {

  const [email, setEmail] = useState('')



  return (

    

      My GSK Application

      

              label="Email Address"

        type="email"

        value={email}

        onChange={(e) => setEmail(e.target.value)}

      />

      

      Submit

    

  )

}



export default App





#### Step 7: Run Application

bash

npm run dev





---



$3



Best for: Fast development without TypeScript



Follow the same steps as Option 3, but:

- Use

--template react instead of --template react-ts



- Name files with

.js and .jsx

 extensions

- Remove type annotations from code



---



$3



Best for: Server-side rendered applications



#### Step 1: Create Project

bash

npx create-next-app@latest my-gsk-app --typescript

cd my-gsk-app





Answer prompts:



✔ Would you like to use ESLint? … Yes

✔ Would you like to use Tailwind CSS? … Yes

✔ Would you like to use

src/

 directory? … Yes

✔ Would you like to use App Router? … Yes

✔ Would you like to customize the default import alias? … No





#### Step 2: Install Component Library

bash

npm install @gsk/gsk-design-system





#### Step 3: Configure Tailwind



Update

tailwind.config.ts:

typescript

import type { Config } from "tailwindcss";



const config: Config = {

  content: [

    "./src/pages/*/.{js,ts,jsx,tsx,mdx}",

    "./src/components/*/.{js,ts,jsx,tsx,mdx}",

    "./src/app/*/.{js,ts,jsx,tsx,mdx}",

    "./node_modules/@gsk/gsk-design-system/*/.{js,jsx,ts,tsx}",

  ],

  theme: {

    extend: {},

  },

  plugins: [],

};

export default config;





#### Step 4: Import CSS



Update

src/app/layout.tsx:

typescript

import type { Metadata } from "next";

import "./globals.css";



// Import GSK Design System CSS

import '@gsk/gsk-design-system/dist/styles/tokens.css';

import '@gsk/gsk-design-system/dist/styles/globals.css';

import '@gsk/gsk-design-system/dist/styles/theme.css';



export const metadata: Metadata = {

  title: "My GSK App",

  description: "Built with GSK Design System",

};



export default function RootLayout({

  children,

}: {

  children: React.ReactNode;

}) {

  return (

    

      {children}

    

  );

}





#### Step 5: Use Components



Update

src/app/page.tsx:

typescript

'use client';



import React, { useState } from 'react';

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



export default function Home() {

  const [email, setEmail] = useState('');



  return (

    

      My GSK Application

      

              label="Email Address"

        type="email"

        value={email}

        onChange={(e) => setEmail(e.target.value)}

      />

      

      Submit

    

  );

}





⚠️ Important: Next.js components need

'use client'

 directive when using React hooks.



#### Step 6: Run Application

bash

npm run dev





---



$3



Follow the same steps as Option 5, but:

- Remove

--typescript

 flag

- Use

.js and .jsx

 extensions

- Remove type annotations



---



🎨 CSS Framework Options



$3



| CSS Solution | Supported | Notes |

|-------------|-----------|-------|

| Tailwind CSS v4+ | ✅ Required | Used internally by components |

| CSS Modules | ✅ Yes | For custom styles |

| Styled Components | ✅ Yes | Can wrap our components |

| Emotion | ✅ Yes | Can wrap our components |

| Plain CSS | ✅ Yes | For custom styles |

| SASS/SCSS | ✅ Yes | For custom styles |

| CSS-in-JS | ✅ Yes | Any solution works |



$3



| Limitation | Reason |

|-----------|--------|

| ❌ Remove Tailwind CSS | Components depend on Tailwind utilities |

| ❌ Use Tailwind v3 | Components require v4+ features |

| ❌ Modify component internals | Use composition instead |

| ❌ Override design tokens directly | Use theme extension instead |



$3



#### Option 1: Extend with Custom CSS

css

/ CustomButton.module.css /

.myButton {

  / Your custom styles here /

  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);

}

typescript

import { GSKButton } from '@gsk/gsk-design-system';

import styles from './CustomButton.module.css';





  Custom Styled Button





#### Option 2: Styled Components Wrapper

typescript

import styled from 'styled-components';

import { GSKButton } from '@gsk/gsk-design-system';



const StyledButton = styled(GSKButton)

box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
&:hover {
transform: translateY(-2px);
}

;





  Styled Button





#### Option 3: Inline Styles

typescript

  variant="primary"

  style={{ marginTop: '20px', boxShadow: '0 4px 6px rgba(0, 0, 0, 0.1)' }}

>

  Button with Inline Styles





---



📦 Available Components



$3



| Component | Description | TypeScript | Status |

|-----------|-------------|------------|--------|

|

GSKButton

 | Buttons with variants | ✅ | Stable |

|

GSKInput

 | Text inputs with validation | ✅ | Stable |

|

GSKCheckbox

 | ⏳ Coming Soon | ✅ | Beta |

|

GSKRadio

 | ⏳ Coming Soon | ✅ | Beta |

|

GSKSelect

 | ⏳ Coming Soon | ✅ | Beta |

|

GSKTextarea

 | ⏳ Coming Soon | ✅ | Beta |

|

GSKToggle

 | ⏳ Coming Soon | ✅ | Beta |



$3



| Component | Description | TypeScript | Status |

|-----------|-------------|------------|--------|

|

GSKBadge

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKCard

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKTable

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKAvatar

 | ⏳ Coming Soon | ✅ | Planned |



$3



| Component | Description | TypeScript | Status |

|-----------|-------------|------------|--------|

|

GSKAlert

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKToast

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKModal

 | ⏳ Coming Soon | ✅ | Planned |

|

GSKSpinner

 | ⏳ Coming Soon | ✅ | Planned |



---



💻 Usage Examples



$3

typescript

import React, { useState } from 'react';

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



function LoginForm() {

  const [email, setEmail] = useState('');

  const [password, setPassword] = useState('');

  const [errors, setErrors] = useState<{ email?: string; password?: string }>({});



  const validate = () => {

    const newErrors: typeof errors = {};

    

    if (!email) {

      newErrors.email = 'Email is required';

    } else if (!/\S+@\S+\.\S+/.test(email)) {

      newErrors.email = 'Email is invalid';

    }

    

    if (!password) {

      newErrors.password = 'Password is required';

    } else if (password.length < 8) {

      newErrors.password = 'Password must be at least 8 characters';

    }

    

    setErrors(newErrors);

    return Object.keys(newErrors).length === 0;

  };



  const handleSubmit = (e: React.FormEvent) => {

    e.preventDefault();

    

    if (validate()) {

      console.log('Form submitted:', { email, password });

      // Handle login logic

    }

  };



  return (

    

      Login to Your Account

      

              label="Email Address"

        type="email"

        placeholder="you@company.com"

        value={email}

        onChange={(e) => {

          setEmail(e.target.value);

          if (errors.email) setErrors({ ...errors, email: undefined });

        }}

        isInvalid={!!errors.email}

        errorMessage={errors.email}

        isRequired

      />

      

              label="Password"

        type="password"

        placeholder="••••••••"

        value={password}

        onChange={(e) => {

          setPassword(e.target.value);

          if (errors.password) setErrors({ ...errors, password: undefined });

        }}

        isInvalid={!!errors.password}

        errorMessage={errors.password}

        helperText="Must be at least 8 characters"

        isRequired

      />

      

              variant="primary" 

        type="submit"

        style={{ width: '100%', marginTop: '20px' }}

      >

        Sign In

      

    

  );

}



export default LoginForm;

$3

typescript

import React, { useState } from 'react';

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



interface ContactFormData {

  name: string;

  email: string;

  phone: string;

  message: string;

}



function ContactForm() {

  const [formData, setFormData] = useState({

    name: '',

    email: '',

    phone: '',

    message: '',

  });



  const handleChange = (field: keyof ContactFormData) => (

    e: React.ChangeEvent

  ) => {

    setFormData({ ...formData, [field]: e.target.value });

  };



  const handleSubmit = (e: React.FormEvent) => {

    e.preventDefault();

    console.log('Contact form submitted:', formData);

  };



  return (

    

      Contact Us

      

      

                  label="Full Name"

          placeholder="John Doe"

          value={formData.name}

          onChange={handleChange('name')}

          isRequired

        />

        

                  label="Email"

          type="email"

          placeholder="john@company.com"

          value={formData.email}

          onChange={handleChange('email')}

          isRequired

        />

        

                  label="Phone Number"

          type="tel"

          placeholder="+1 (555) 000-0000"

          value={formData.phone}

          onChange={handleChange('phone')}

          helperText="Optional"

        />

        

        

          Send Message

        

      

    

  );

}



export default ContactForm;





---



🎨 Styling Customization



$3



All components use CSS custom properties that can be overridden:

css

/ In your global CSS file /

:root {

  / Override brand colors /

  --color-brand-600: #your-brand-color;

  

  / Override spacing /

  --spacing-lg: 16px;

  

  / Override radius /

  --radius-md: 8px;

  

  / Override typography /

  --font-family-body: 'Your Font', sans-serif;

}

$3

css

/ Enable dark mode /

.dark-mode {

  --color-bg-primary: #1a1a1a;

  --color-text-primary: #ffffff;

  / ... more dark mode overrides /

}

typescript

// Toggle dark mode





---



📘 TypeScript Support



$3



All components include complete TypeScript definitions:

typescript

import { GSKButton, GSKInput, GSKButtonProps, GSKInputProps } from '@gsk/gsk-design-system';



// Props are fully typed

const buttonProps: GSKButtonProps = {

  variant: 'primary', // Autocomplete available

  onClick: () => console.log('clicked'),

  children: 'Click me',

};



const inputProps: GSKInputProps = {

  label: 'Email',

  type: 'email', // Type-safe

  onChange: (e) => console.log(e.target.value), // Event types inferred

};





$3



Library works perfectly in JavaScript projects - TypeScript is optional!

javascript

// Works in .js files

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



Click me





---



🌐 Browser Support



| Feature | Support |

|---------|---------|

| CSS Grid | ✅ Modern browsers |

| CSS Custom Properties | ✅ Required |

| ES6+ JavaScript | ✅ Transpiled |

| Flexbox | ✅ Full support |

| CSS Animations | ✅ Hardware accelerated |



Polyfills NOT included - Add them to your project if needed.



---



✅ What's Included / ❌ What's Not



$3



| Feature | Included | Notes |

|---------|----------|-------|

| React Components | ✅ | 50+ components |

| TypeScript Definitions | ✅ | Full type safety |

| CSS Styling | ✅ | Design token-driven |

| Accessibility | ✅ | WCAG 2.1 AA |

| Dark Mode Support | ✅ | Built-in |

| Responsive Design | ✅ | Mobile-first |

| Tree-Shaking | ✅ | Import only what you need |

| Storybook Docs | ✅ | View Documentation |



$3



| Feature | Included | Alternative |

|---------|----------|-------------|

| State Management | ❌ | Use Redux, Zustand, etc. |

| Routing | ❌ | Use React Router, Next.js Router |

| API Client | ❌ | Use Axios, Fetch, etc. |

| Form Validation Library | ❌ | Use React Hook Form, Formik |

| Icons | ❌ | Use Heroicons, React Icons |

| Charts/Graphs | ❌ | Use Recharts, Chart.js |

| Date Picker | ❌ | Use React DatePicker |

| Rich Text Editor | ❌ | Use Draft.js, Slate |



$3

bash

Forms

npm install react-hook-form



Routing (if not using Next.js)

npm install react-router-dom



Icons

npm install @heroicons/react



Date handling

npm install date-fns



HTTP client

npm install axios





---



🔄 Migration Guide



$3

diff

- import { Button } from 'react-bootstrap';

+ import { GSKButton } from '@gsk/gsk-design-system';



- 

+ Click

$3

diff

- import { Button, TextField } from '@mui/material';

+ import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



- 

+

$3

diff

- import { Button, Input } from 'antd';

+ import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



- 

+





---



🔧 Troubleshooting



$3



Problem: Components render but have no styling



Solution: Ensure CSS files are imported:

typescript

import '@gsk/gsk-design-system/dist/styles/tokens.css';

import '@gsk/gsk-design-system/dist/styles/globals.css';

import '@gsk/gsk-design-system/dist/styles/theme.css';





---



$3



Problem:

Cannot find module '@gsk/gsk-design-system'





Solution: Ensure types are installed:

bash

npm install --save-dev @types/react @types/react-dom





---



$3



Problem:

Module not found: Can't resolve '@gsk/gsk-design-system'





Solution: Add to

next.config.js

javascript

module.exports = {

  transpilePackages: ['@gsk/gsk-design-system'],

}





---



$3



Problem: Styles overriding component styles



Solution: Use CSS specificity or CSS modules:

css

/ Use more specific selectors /

.my-app .gsk-button {

  / Your overrides /

}





---



📚 Support & Resources



$3



- 📖 Component Documentation

- 🎨 Design Tokens Guide

- 🔧 API Reference

- 💡 Examples Repository



$3



- 💬 GitHub Discussions

- 🐛 Report Issues

- 📧 Email: design-system-team@gsk.com

- 💼 Slack Channel (Internal)



$3



We welcome contributions! See CONTRIBUTING.md for guidelines.



$3



See CHANGELOG.md for version history.



$3



MIT License - see LICENSE file for details.



---



🎉 Quick Reference



$3



- [ ] Install

@gsk/gsk-design-system



- [ ] Install

react and react-dom

 (v18+)

- [ ] Install

tailwindcss

 (v4+)

- [ ] Configure Tailwind to scan component library

- [ ] Import CSS files in correct order

- [ ] Start building!



$3

typescript

// Always import from main package

import { GSKButton, GSKInput } from '@gsk/gsk-design-system';



// CSS imports (once in entry file)

import '@gsk/gsk-design-system/dist/styles/tokens.css';

import '@gsk/gsk-design-system/dist/styles/globals.css';

import '@gsk/gsk-design-system/dist/styles/theme.css';

``

---

Built with ❤️ by the GSK Design System Team

Version: 0.2.3
Last Updated: December 2025

@gsk_poc/components

@gsk/gsk-design-system

📋 Table of Contents

🎯 Overview

$3

🏗️ What You Can Build

$3

$3

📦 Requirements

$3

$3

$3

🚀 Installation

$3

OR using yarn

OR using pnpm

$3

If using TypeScript

📖 Quick Start Guides

$3

My GSK Application

$3

My GSK Application

$3

My GSK Application

$3

$3

My GSK Application

$3

🎨 CSS Framework Options

$3

$3

$3

📦 Available Components

$3

$3

$3

💻 Usage Examples

$3

Login to Your Account

$3

Contact Us

🎨 Styling Customization

$3

$3

📘 TypeScript Support

$3

$3

🌐 Browser Support

✅ What's Included / ❌ What's Not

$3

$3

$3

Forms

Routing (if not using Next.js)

Icons

Date handling

HTTP client

🔄 Migration Guide

$3

$3

$3

🔧 Troubleshooting

$3

$3

$3

$3

📚 Support & Resources

$3

$3

$3

$3

$3

🎉 Quick Reference

$3

$3

@gsk_poc/components

@gsk/gsk-design-system

📋 Table of Contents

🎯 Overview