CSS Content Button

A React component library for SEO-friendly buttons that use CSS content property to display text without affecting keyword density. Perfect for websites with many repeated button texts that could interfere with SEO optimization.

🚀 Live Demo

See this package in action at Phone Number Generator - a tool that uses our CSS content button technique to avoid keyword density issues with repeated button text.

🎯 Problem Solved

When you have multiple buttons with the same text (like "Play", "Download", "Subscribe") on a page, these repeated words can negatively impact your SEO keyword density. This package solves that by using CSS ::before pseudo-elements with the content property to display button text, keeping the actual text out of your HTML.

🚀 Key Benefits

• 📈 SEO Optimized: Button text doesn't affect keyword density
• 🎨 Modern Design: Beautiful, customizable button styles
• 📱 Responsive: Mobile-friendly design
• ♿ Accessible: Proper ARIA labels for screen readers
• 🔧 TypeScript: Full TypeScript support
• 🎭 Flexible: Multiple variants, sizes, and customization options
• ⚡ Lightweight: No external dependencies

📦 Installation

# Using npm
npm install css-content-button

# Using yarn
yarn add css-content-button

# Using pnpm
pnpm add css-content-button

🔧 Usage

Basic Usage

import React from 'react';
import { CssContentButton } from 'css-content-button';

function App() {
  return (
    <div>
      <CssContentButton 
        content="Play Video" 
        onClick={() => console.log('Playing video')}
      />
    </div>
  );
}

Advanced Usage with All Props

import React from 'react';
import { CssContentButton } from 'css-content-button';

function MyComponent() {
  const handleClick = () => {
    console.log('Button clicked!');
  };

  return (
    <div>
      <CssContentButton
        content="Subscribe Now"
        variant="primary"
        size="large"
        onClick={handleClick}
        aria-label="Subscribe to our newsletter"
        className="my-custom-class"
        style={{ '--primary-color': '#ff6b6b' }}
      />
    </div>
  );
}

📋 API Reference

CssContentButton Props

Property	Type	Default	Required	Description
content	string	-	✅	The text to display (rendered via CSS)
variant	'primary' | 'secondary' | 'success' | 'danger' | 'warning' | 'info'	'primary'	❌	Button color variant
size	'small' | 'medium' | 'large'	'medium'	❌	Button size
disabled	boolean	false	❌	Whether button is disabled
onClick	() => void	-	❌	Click handler function
className	string	''	❌	Additional CSS class
style	React.CSSProperties	-	❌	Custom inline styles
aria-label	string	content	❌	Accessibility label

🎨 Variants

Color Variants

<CssContentButton content="Primary" variant="primary" />
<CssContentButton content="Secondary" variant="secondary" />
<CssContentButton content="Success" variant="success" />
<CssContentButton content="Danger" variant="danger" />
<CssContentButton content="Warning" variant="warning" />
<CssContentButton content="Info" variant="info" />

Size Variants

<CssContentButton content="Small" size="small" />
<CssContentButton content="Medium" size="medium" />
<CssContentButton content="Large" size="large" />

🎨 Customization

CSS Variables

You can customize the appearance using CSS variables:

:root {
  --primary-color: #your-color;
  --primary-hover: #your-hover-color;
  --border-radius: 8px;
  --font-family: 'Your Font', sans-serif;
}

Custom Styles

<CssContentButton
  content="Custom Button"
  style={{
    '--primary-color': '#ff6b6b',
    '--border-radius': '20px'
  }}
/>

CSS Classes

/* Override specific button styles */
.my-custom-button {
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  text-transform: uppercase;
}

.my-custom-button:hover {
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

🔍 SEO Benefits Example

Traditional buttons (affects keyword density):

<!-- This HTML contains 40 instances of "Play" -->
<button>Play</button>
<button>Play</button>
<button>Play</button>
<!-- ... 37 more buttons -->

CSS Content buttons (SEO-friendly):

<!-- This HTML contains 0 instances of "Play" in text content -->
<button class="css-content-button" style="--button-content: 'Play'"></button>
<button class="css-content-button" style="--button-content: 'Play'"></button>
<button class="css-content-button" style="--button-content: 'Play'"></button>
<!-- ... 37 more buttons -->

The text "Play" is displayed via CSS content property, keeping it out of your HTML and preserving your keyword density for SEO.

♿ Accessibility

The component maintains full accessibility:

• Proper ARIA labels (uses content as fallback)
• Keyboard navigation support
• Focus indicators
• Screen reader compatibility

<CssContentButton
  content="Play Video"
  aria-label="Play the promotional video about our product"
/>

🌐 Browser Support

• Chrome ≥ 51
• Firefox ≥ 54
• Safari ≥ 10
• Edge ≥ 79

🛠️ Development

Local Development

# Clone the repository
git clone https://github.com/jbgf/css-content-button.git
cd css-content-button

# Install dependencies
pnpm install

# Development mode
pnpm run dev

# Build
pnpm run build

# Run tests
pnpm test

# Lint code
pnpm run lint

Project Structure

css-content-button/
├── src/
│   ├── index.tsx              # Main component
│   ├── css-content-button.css # Styles
│   └── index.test.tsx         # Tests
├── dist/                      # Build output
├── package.json
├── tsconfig.json
├── rollup.config.js
└── README.md

📝 Examples

E-commerce Site

// Product listing with many "Add to Cart" buttons
function ProductGrid({ products }) {
  return (
    <div className="product-grid">
      {products.map(product => (
        <div key={product.id} className="product-card">
          <h3>{product.name}</h3>
          <p>{product.description}</p>
          <CssContentButton
            content="Add to Cart"
            variant="primary"
            onClick={() => addToCart(product.id)}
            aria-label={`Add ${product.name} to cart`}
          />
        </div>
      ))}
    </div>
  );
}

Video Platform

// Video thumbnails with many "Play" buttons
function VideoThumbnail({ video }) {
  return (
    <div className="video-thumbnail">
      <img src={video.thumbnail} alt={video.title} />
      <CssContentButton
        content="Play"
        variant="primary"
        size="large"
        onClick={() => playVideo(video.id)}
        aria-label={`Play ${video.title}`}
        className="play-button-overlay"
      />
    </div>
  );
}

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the project
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

📄 License

MIT © [Your Name]

🙏 Acknowledgments

Inspired by the SEO optimization technique of using CSS content property to avoid keyword density issues, as discussed in various SEO communities.

📊 Changelog

v1.0.0

• 🎉 Initial release
• ✨ CSS content button implementation
• 🎨 Multiple variants and sizes
• ♿ Full accessibility support
• 📱 Responsive design
• 🔧 TypeScript support

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