During W3C Technical Plenary Meetings and Advisory Committee Meetings, we have Lightning Talks. 3 minutes per speaker, strictly. Since passing post-it notes with "warning, only 1 minute left" to speakers was not very productive/modern, I have written this very simple page to run in full-screen mode.

  • set the number of minutes for the countdown
  • set the font-size in pixels ; 500 seems to be ok for most screens
  • set the number of seconds to zero triggering a style change to orange background
  • set the number of seconds to zero triggering a style change to red background
  • during the countdown or after its end, press any key to go back to the config page
  • works fine in Firefox and MSIE

/* enjoy */