Front end certification drum test

Curriculum Help
1

Hi this is my code, I cant seem to get the last test case right and I am not sure why

7. When a .drum-pad is triggered, a string describing the associated audio clip is displayed as the inner text of the #display element (each string must be unique).

I am sure that my text are unique and i used p element
https://codepen.io/abhisita/pen/yLQOrYb

2

If I move the class and id from the div to the button it passes the tests.

3

that seems to work. Thank ypu!