on>
                        <button class="control-btn" id="timer-reset" disabled>Reset</button>
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                    <div class="keyboard-hints">
                        <span>Keyboard shortcuts: Enter (Start), Space (Pause), R (Reset)</span>
                    </div>
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        <footer class="app-footer">
            <p>Created with <i class="fas fa-heart" aria-hidden="true"></i> by <a href="https://github.com/deepakkum