---
title: Check mobile layout
description: Check how your application responds to different screen sizes, devices, input methods, locales, time zones, and locations.
---

# Check mobile layout

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<ViewMarkdown />
</div>

Specify the screen size you want to test, and your coding agent renders the page at that size.

```
/shiplight verify http://localhost:3000 on mobile (390x844 viewport, touch enabled) —
check that the hamburger menu appears instead of the desktop navigation bar.
```

Browser emulation supports viewport and device settings, touch input, user agent, color scheme, locale, time zone, and geolocation. You can use it to check a Japanese locale, dark mode, or location-specific behavior.

## Review the layout

You receive screenshots at the requested viewport and a summary of how the layout responded, including which elements appeared, moved, or collapsed.

For a complete list of emulation settings and their defaults, see [Browser Options](/local/agent-workflow/tool-reference#all-browser-options).