Random Quote Machine- Code copy pasted but still not working

https://codepen.io/ankit-a-aggarwal/pen/oepovr - Not working

https://codepen.io/barmar/pen/PqagNw - working

At the moment they both appear to work.

btw I would change button’s cursor to pointer so its more obvious that its a button

.button{
   cursor: pointer;
}

Good luck