Docker Build no style sheet applied

I have build a local docker using, the code below. When i access the docker on http://localhost:6081 it runs but het nog style sheets applied. When i inspect if see the stylesheets loaded but not applied.

git clone https://github.com/retspen/webvirtcloud
cd webvirtcloud
#Copy the settings file
get_files "settings.py" "webvirtcloud" "{{FILES_PATH}}/webvirtcloud" "" "yes"
#Build the docker
docker build -t local/webvirtcloud:latest .
cd ..
#remove the build directroy
rm -rf webvirtcloud
#run the docker
docker run -d -p 6081:80 -p 6080:6080  \
  --restart=unless-stopped\
  --name webvirtcloud \
  local/webvirtcloud

retspen / webvirtcloud

Docker Build no style sheet applied #451