Assumption: you want a brief technical explanation and example use of the Google dork "inurl:viewerframe" (and related modifiers) for searching or embedding viewers, plus a short example snippet demonstrating embedding a PDF viewer with CSS for motion/top positioning.
The inurl:viewerframe?mode=motion&top string is just one of many. Security researchers use a family of similar "Google Dorks" to map IoT vulnerabilities. inurl viewerframe mode motion top
I’m not sure what you mean by “inurl viewerframe mode motion top — prepare an piece.” I’ll make a reasonable assumption and provide a short, polished piece based on likely intents: Assumption: you want a brief technical explanation and
What you saw depended on the camera: