Why does not display styles on the page when raising the frontend on the server?

Question

Apache HTTP Server

Hello everyone, the essence of the question is this: when raising the frontend project locally on the server, for some reason it displays only the index.html layout , and styles and .js files, etc. does not pull up.
There is a Dockerfile structure :

FROM ubuntu:18.04

RUN apt-get -y update
RUN apt-get -y install apache2


RUN mkdir -p /usr/src/app/
WORKDIR /usr/src/app/

COPY . /usr/src/app/

ADD index.html /var/www/html/index.html

CMD ["/usr/sbin/apache2ctl", "-DFOREGROUND"]


EXPOSE 80

I did not touch the Apache configuration file , i.e. default.conf is standard
. Any suggestions what it could be?
Having entered the container, the files for the front were pulled off everything ...

Answer 1

curl -I http://localhost/css/bootstrap.css ---> Content Type - what does it say?
If Plain text, then you need to adjust mimetypes:
https://www.youtube.com/watch?v=YDYblioxbqQ&list=P...