Put it into practice
- Open the page at a stable viewport.
- Bring the main action into view without clipped controls.
- Capture a second narrower version if the layout changes responsively.
What this looks like
A settings feature is easier to see in a focused panel than in a full ultrawide desktop capture.
A detail to keep clear
Shrinking the entire desktop into a small card usually makes every label illegible.
Using MockupX
MockupX accepts pasted, dropped and uploaded images. Screen capture depends on browser support and your permission. The phone-transfer flow uses a temporary upload session. Prepare your source image before decorating it: a frame cannot recover unreadable text or remove sensitive information for you.
Check the result
Keep the original screenshot, then review the exported file at the size where people will see it. Check the message, the visible interface and the final crop separately. For a handoff, record the destination and the approved file so another person can distinguish the final version from a draft.
References and further reading
Use the official references for format behavior and current destination requirements. The composition advice above is a practical design approach, not a promise of platform approval.
MDN image formats ↗