A couple more observations on the Dark Theme viewed in Chrome. . .
-
Your test page Sun block has a problem with “Estimated” font size - see Sun1. (I presume you have been making changes, as the block is no longer titled Sun, Moon & Space like mine - see Sun2. I prefer just Sun!)
-
I think the webcam fits better at $webcam_height of 155px (webcam2) rather than 160px (webcam1, where it hangs over the bottom of the frame)? (I changed mine to show width 70%, too, to reproduce the 4:3 aspect ratio without stretching.)