@jonny In 2001, I created a simple page that made a bird sub-window center itself under your mouse. The idea was "you can't close it without using keyboard controls". The JS doesn't work anymore but I really don't care to figure out why.
The code, and my ASCII art bird, is here:
https://qaz.wtf/JS/
@elithebearded I think with contemporary javascript you would do that like this! https://gist.github.com/sneakers-the-rat/b00e431e011b17d69f3692196772d4a7