🧼 Vanilla Extract Normalize

A modern CSS normalization library built specifically for Vanilla Extract projects.

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📦 Installation

npm install vanilla-extract-normalize
# or
yarn add vanilla-extract-normalize

Note: This package requires @vanilla-extract/css as a peer dependency.

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🚀 Usage

This package provides two normalization options:

Import Path	Description
vanilla-extract-normalize/recommended	Modern-normalize inspired base (lighter, minimal)
vanilla-extract-normalize/tailwind/preflight	Complete Tailwind preflight recreation (more comprehensive)

Option 1: Recommended (modern-normalize style)

// app.css.ts
import 'vanilla-extract-normalize/recommended';

// Your styles here...
export const container = style({
  padding: '1rem',
});

This is a direct port of modern-normalize — a lightweight, minimal normalization that only fixes browser inconsistencies without adding extra opinions.

Option 2: Tailwind Preflight

// app.css.ts
import 'vanilla-extract-normalize/tailwind/preflight';

// Your styles here...
export const container = style({
  padding: '1rem',
});

This is a complete 1:1 recreation of Tailwind's preflight (@preflight). It's more opinionated and comprehensive, matching exactly what Tailwind applies under the hood.

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✨ Features Comparison

| Feature | Recommended | Tailwind Preflight | | ------------------------------ | :--------------------------: | :------------------------: | --- | | Box Sizing | border-box on all elements | ✅ | ✅ | | Margin/Padding Reset | ❌ | ✅ | | Border Reset | ❌ | ✅ | | System Font Stack | ✅ (system-ui) | ✅ (Tailwind's stack) | | Form Element Normalization | Basic | Comprehensive | | Button Appearance Reset | Basic | Full | | File Input Styling | ❌ | ✅ | | Placeholder Styling | ❌ | ✅ | | Hidden Attribute Support | ❌ | ✅ (until-found support) | | Interactive Cursors | ❌ | ✅ | | Media Element Defaults | ❌ | ✅ | | List Style Reset | ❌ | ✅ | | Table Border Inheritance | ✅ | ✅ | | Bundle Size | 🟢 Smaller | 🟡 Larger |

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📋 Detailed Breakdown

🎨 Recommended (modern-normalize style)

Located at src/recommended.css.ts, this is a faithful port of modern-normalize:

// What it includes:
- ✅ Universal box-sizing: border-box
- ✅ HTML/body font normalization
- ✅ Bold element consistency
- ✅ Monospace font stack for code elements
- ✅ Sub/sup positioning
- ✅ Table border color inheritance
- ✅ Form element font inheritance
- ✅ Button appearance normalization
- ✅ Progress element alignment
- ✅ WebKit spin button removal
- ✅ Search input normalization
- ✅ File upload button styling
- ✅ Summary display as list-item

🎯 Tailwind Preflight

Located at src/tailwind/preflight.css.ts, this is a complete 1:1 recreation of Tailwind's preflight:

// What it includes (everything from recommended, plus):
- ✅ Margin/padding reset on all elements
- ✅ Border reset to '0 solid'
- ✅ Tab size: 4
- ✅ Webkit tap highlight color: transparent
- ✅ HR element normalization
- ✅ Abbr[title] underline dotted
- ✅ Heading font size/weight inheritance
- ✅ Link color/text decoration inheritance
- ✅ Small text: 80%
- ✅ Textarea vertical resize only
- ✅ Placeholder opacity and color
- ✅ Disabled state cursor: default
- ✅ Button/interactive elements cursor: pointer
- ✅ Media elements: block + vertical-align: middle
- ✅ Images/video: max-width: 100%, height: auto
- ✅ List style: none
- ✅ Hidden attribute with until-found support
- ✅ :host selector support
- ✅ ::backdrop pseudo-element support
- ✅ ::file-selector-button support
- ✅ :where() selector usage
- ✅ Firefox focus ring handling
- ✅ Firefox :-moz-ui-invalid shadow removal

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🎯 When to Use Which?

Choose Recommended if:

• ✅ You want a minimal, lightweight normalization
• ✅ You prefer to add your own resets incrementally
• ✅ You're already using modern-normalize in CSS projects
• ✅ Bundle size is critical

Choose Tailwind Preflight if:

• ✅ You're migrating from Tailwind CSS
• ✅ You want the exact same base as Tailwind
• ✅ You prefer a more opinionated, comprehensive reset
• ✅ You want to avoid writing additional resets
• ✅ You need features like placeholder styling and file input normalization

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🏗️ Project Structure

vanilla-extract-normalize/
├── src/
│   ├── recommended.css.ts        # Modern-normalize style (lightweight)
│   └── tailwind/
│       └── preflight.css.ts      # Complete Tailwind preflight recreation
├── dist/                         # Compiled output
├── README.md                      # This file
└── package.json

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🌐 Browser Support

Browser	Version
Chrome	✅ 60+
Firefox	✅ 52+
Safari	✅ 12+
Edge	✅ 79+
iOS Safari	✅ 12+
Android Chrome	✅ 90+

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📄 License

MIT © Simone Gauli

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🙏 Acknowledgments

• modern-normalize by Sindre Sorhus — for the recommended base
• Tailwind CSS — for the preflight implementation
• Vanilla Extract — for the amazing zero-runtime CSS-in-JS library

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Made with ❤️ for the Vanilla Extract community