1. Preview - saving it on my computer. Doesn't work!



Hi guys, I have saved this Preview of the code to my PC, but JavaScript (DropDown menu and Slides) doesn't work, Maybe you have any idea of solving it?

I have created 3 files as follows: index.html, style.css, app.js .. all on the same directory with the codes copied from the website.
What else could be missing?

Thanks in addition!


You will have to change

    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>


    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>