# Phone-Width View

See a web page at phone width, for example to check a mobile site.

## When to use it

When you need to see or test how a page looks on a phone.

## How to use it

- Right-click the tab › **Dimensions** › **Phone**. The page is shown 440 px wide, in the middle.
- **Dimensions** › **Default** returns to full width.

Only the width changes. The page is not reloaded and the website is not told it is a phone.