XAMPP and Bootstrap

After successfully installing an Apache server on your rig (see previous post), now install some webpage templates via Bootstrap

Here is how I did

At first blush, Bootstrap looks like a directory structure that can be copied into c:/xampp/htdocs (this is where I installed XAMPP). So I just downloaded the source code files, unzipped and moved to the c:/xampp/htdocs directory. Did this work right out of the box? No.
That is because, I copied the standard "Hello World" html from Bootstrap into a file called bs1.html and typed

 http://localhost/bs1.html

into the browser.
Viewing source and debugging, I found that certain files in the directory were not found, so I just moved them to where the HTML expected them to be.
Kind of clunky, no?
Yes, so I installed

node.js

bower

and

git.

To be safe, I navigated to the

c:/xampp/htdocs

directory before installing.
Then I ran

bower install bootstrap

from inside the

c:/xampp/htdocs

directory.
Now after studying the directory, I found that

http://localhost/docs/examples/jumbotron-narrow/index.html

opens up a nice little template.
How is using Bootstrap any different then just modifying CSS files? I do not yet know. More may be revealed.