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Responsive design ensures your website looks and works well on all devices — from large desktop monitors to small mobile phones. Instead of building separate websites for each device, you create a single site that adapts its layout, typography, and content based on the screen size.
| Fact | Statistic |
|---|---|
| Mobile traffic | Over 60% of global web traffic comes from mobile devices |
| SEO | Google uses mobile-first indexing — it ranks mobile-friendly sites higher |
| User experience | Users leave sites that are hard to navigate on their device |
| Cost | One responsive site is cheaper to maintain than separate mobile and desktop versions |
The viewport meta tag is essential for responsive design. Without it, mobile browsers render the page at desktop width and scale it down:
<meta name="viewport" content="width=device-width, initial-scale=1.0">
| Property | Purpose |
|---|---|
width=device-width | Sets the viewport width to the device screen width |
initial-scale=1.0 | Sets the initial zoom level to 100% |
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