Responsive HTML Testing
Test desktop, tablet, and mobile layouts with preview width controls and media-query checks.
步骤
- Build the layout at desktop width first.
- Switch to tablet and mobile preview widths.
- Adjust CSS with media queries.
- Recheck interactive elements at each width.
- Validate that text remains readable without horizontal page scroll.
提示
The viewport label shows the current preview frame width so you can align tests with common breakpoints.