How to use css in bootstrap

Question

Am having a lot of trouble figuring out how css is used (if it is) when building a page using boot strap, I have read bootstrap tutorials from several sites including here but I am not finding (or possibly missunderstanding) what the syntax would be for using css properties when building with bootstrap,
For example how would I write something like this:

https://code.sololearn.com/WUsC9kSPjOcN/?ref=app

Into a page built with bootstrap?

Answer 1

while using bootstrap you use their pre define classes in which css are written already you just have to add those class name in your html No need of extra css until you want to make changes in pre define classes Thank you

Answer 2

Bootstrap doesn't provide you animation features for your css classes. You should be using animate.css if you want to get effects like that from the easy way or you can get better at css and write your own animation library.

A lot of beginners also forget to add stylesheet tag in their index files. Be sure to add that in your head tag. Css source might be coming from a CDN or a local directory this is important

From scratch you can learn to make CSS animations from looking up for cssreferences.io website if that's what you prefer

Answer 3

Thank you, I understand better now, that was some thing I was confused about to use extra css page with bootstrap or not.