08 / 25CAPTURE · FOCUSED GUIDE

Check a page at another width

Chosen viewport width is a Turbo option for responsive QA. It asks the page to reflow at a mobile, tablet, laptop, or custom CSS width before the full-page capture is measured.

01

Width changes the layout

A different width can move navigation, stack cards, and change the page's total height. ScrollSnapshot measures after the reflow, keeps the display's real pixel density, and clears the temporary override when the capture ends.

02

Where to find it

  1. Enable Chosen viewport width on the Features page if it is hidden.
  2. Choose Full page and Turbo, then select a preset or type a custom width.
  3. Capture and check the result for a warning if Turbo could not apply the width.