Drop-down-menu not working on second page

Question

I have to make a website for school and we have to make a drop-down-menu. I've made one and it works fine, but on my other pages the drop-down-menu won't open when I click on it. Can somebody help me?

Answer 1

I'd recommend that you use the chrome developer tools to check and see what happens to the other pages when you click the button that's supposed to initiate the dropdown menu.

If nothing happens, right click the button and hit inspect in developer tools to verify that you're targeting the correct element, and to verify that the dropdown menu actually exists on all your pages.

Answer 2

Most likely you haven't linked the javascript file on the other pages. Can't say much without you showing what you've done first.