Current Counter: 0
When the 'increase' button is clicked, increment the counter above.
When the 'decrease' button is clicked, decrement the counter above.
When this button is clicked, display every number from 0 up to and including the counter above.
Result:
When this button is clicked, display all odd numbers from 1 to the counter above.
Result:
Add every multiple of 5 up to the counter to an array in reverse order, then print the array itself to the console.
When either button is clicked, only this paragraph changes color.