Pretty cool solution but it doesn't seem to be 100% reliable, eg. on this page http://stackoverflow.com/questions/31454681/progress-bar-with-cycle-divider http:

Pretty cool solution but it doesn't seem to be 100% reliable, eg. on this page http://stackoverflow.com/questions/31454681/progress-bar-with-cycle-divider http://stackoverflow.com/questions/31454681/progress-bar-wit... it displays some css definitions at the beggining of the page