Countdown Timer Tool:

Below is the complete tool of the countdown timer tool implemented in HTML, CSS and JavaScript. This tool allows users to set a countdown timer by specifying hours, minutes and seconds. It has a colorful style and responsive design.

Countdown Timer Tool

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Features of Countdown Timer Tool:

• Display: Shows the current countdown time in hours, minutes and seconds format.
• Input Field: Allows the user to input the desired countdown time in hours, minutes and seconds.
• Start Countdown Button: Starts the countdown with the inputted time.

How it Works:

1. When the user clicks the "Start Countdown" button, the startCountdown() function is called.
2. The function retrieves the inputted hours, minutes and seconds and calculates the total countdown time in seconds.
3. It then starts a countdown interval, decreasing the total number of seconds every second.
4. If the countdown reaches zero, it will display "Timeout!" It shows. In the display area.
5. Otherwise, it formats and displays the remaining time in the format of hours, minutes and seconds.