Building a responsive website is not complete until you test it on different screen sizes.
Testing helps you find layout issues, text overflow problems, and broken elements.
Professional developers always test designs before launching a website.
The easiest way to test is by resizing your browser window.
You can quickly see how your layout reacts to different widths.
This example helps you visually confirm that breakpoints are working correctly.
You can test layout behavior without any special tools.
This is how developers test alignment and spacing.
Even simple layouts must stay balanced on all devices.
Ways to test responsive layouts
- Resize the browser window
- Use developer tools device mode
- Test on real mobile phones
- Check on different browsers
Testing also includes checking long text and overflow issues.
This prevents broken layouts on small screens.
Practice task
Create a responsive page and:
- Resize the browser window
- Use developer tools device view
- Test long text
- Check alignment and spacing
Next lesson
In the next page, you will build a complete real-world responsive website layout.