     const level2 = setInterval(() => {
            block.style.width = `${40 + i}px`;
            i += 5;
        }, 10000)

        end.addEventListener('onClick', () => {
            location.reload(true);
        })

        var startTime, endTime;

        function start() {
            startTime = new Date();
        };

        function calcTime() {
            endTime = new Date();
            var timeDiff = endTime - startTime;
            timeDiff /= 1000;
            return tim