This page will allow you to enter a number of minutes, and when the 'Start' button is clicked, the progress bar will slowly fill up over the specified period. It's done with JavaScript and CSS, based on code found here, and I think it's pretty slick. What's it for? That's for you to decide. I use it as an aid to meditation, but I can think of other potential uses as well.
If you want to start over, simply refresh the page.
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