A fast, minimalist stopwatch web app built with vanilla HTML, CSS, and JavaScript for accurate timing down to the millisecond.

Features:
1) Start, Pause, and Reset stopwatch
2) Millisecond-level timing accuracy
3) Clean, centered UI with dark theme
4) Responsive layout for both mobile and desktop
5) Real-time updates using setInterval()
6) Start button becomes a resume button after stop is pressed

Built With:
HTML5 - structure
CSS3 - styling and layout
JavaScript - stopwatch logic and timing functionality

How It Works:
The stopwatch uses JavaScript setInterval() function to repeatedly update the display at fixed intervals of approximately 10 milliseconds. It tracks elapsed time by incrementing milliseconds, seconds, minutes, and hours over time. Each tick (interval) updates the DOM, which keeps the display in sync with the interval counters. The app simulates a stopwatch by incrementing values at fixed intervals.