The instructions is asking you: Declare a new targetInputContainer variable, and assign it the value of document.querySelector(). Use concatenation to separate targetId and .input-container with a space, and pass that string to querySelector().
But aren’t concatenating the targetId with .inputContainer. instead you have added a # and dropdown.value
Because you haven’t concatenating (+) the variable targetId and '.input-container'. also you you need to add the exact’ .input-container` to the querySelector() after concatenate symbol.