Press ← ↑ → ↓ to navigate.
This demo runs in slow motion
The red element is originally an invisible rectangle.
After pressing the key, it is shifted by 1 pixel until another element is touched.
If no element is found, the size will be stretched on the whole screen and searched again.

BUTTON 1

BUTTON 2

BUTTON 3

BUTTON 4

BUTTON 5

BUTTON 6

BUTTON 7

BUTTON 8