---
id: "67741b3d-585e-440a-aad7-90061a3bfad8"
name: "Screenshot Pixel Coordinates"
micro_summary: "Screenshots were 2× device pixels while clicks used CSS pixels; divide original screenshot coordinates by `devicePixelRatio`."
status: "discarded"
see_also: []
scope: "Failed approach: passing raw device-pixel screenshot coordinates directly to `click_at_xy()`."
discard_reason: "Raw device-pixel screenshot coordinates missed the CSS click viewport; divide by devicePixelRatio."
---
The captured screenshot was 2940×1672 while `window.innerWidth/innerHeight` were 1470×836 with `devicePixelRatio=2`. Raw screenshot coordinates therefore exceeded the CSS viewport and clicks missed or no-op'd. Use original screenshot pixels divided by DPR; ignore any additional scaling applied by the image viewer.