I installed Wordpress inside a folder known as "wordpress" in root, however i transformed that to "blog" and set it into another folder named "get_a_class." Now I recieve a webpage without any CSS.

i discovered the easy solution for your which ended up being to use database making alterations in the table wordpress-option and alter site url attribute and residential attribute and thats it.

Yes, Database editing simpler whenever you've folder transformed or domain change happens. For step-by-step instruction for moving in one domain to a different domain follow www.sayopenweb.com/moving-wordpress-from-one-domain-to-another-domain/