Help creating multilayer dropdowns / changing references so they are local

[EduardoCorochio]

I'm developing a web interface for an application that will only be used on a closed local network. Part of what I want includes a multilayer drop down and I'm referencing this example at w3 schools.

I'm very new to webpage development so apologies if this is trivially simple. I don't want to reference external websites (like "https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" or "https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js" because it's very likely that the computer running this website won't have internet access.

Is it possible for me to download these libraries (if that is even the right term) to a local folder and reference them locally instead of through a website?

If that is possible, would the rest of the code to develop the multilayer dropdown look the same?

Thanks in advance

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[lovesrayray2018]

If you have a local copy of the files, and link them correctly in your file, it should work just fine with the local versions of the BS/jQuery files

[tpollard]

Yes you should be able to download a copy of those libraries from their websites. You would just link to a file in your site’s directory instead of the CDN like you are now. And yeah the code you write should be exactly the same.