diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..6f3416a
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,7 @@
+uploads
+node_modules
+static/dist
+static/.webassets-cache
+*.js
+*.json
+*.md
\ No newline at end of file
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6bacabe..dd34900 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -34,6 +34,10 @@ bandit:
 
 tests:debian:
   stage: test
+  before_script:
+    - apt update
+    - apt install nodejs npm
+    - npm install --global postcss
   script:
   - apt-get -qqy update
   - apt-get -qqy install --no-install-recommends mat2 python3-flask python3-coverage python3-pip python3-setuptools
diff --git a/Dockerfile.development b/Dockerfile.development
index 815459d..bfcaa32 100644
--- a/Dockerfile.development
+++ b/Dockerfile.development
@@ -9,7 +9,10 @@ RUN apt-get update \
     gir1.2-gdkpixbuf-2.0 \
     libimage-exiftool-perl \
     libgirepository1.0-dev \
+    nodejs npm \
 &&  pip install -r requirements.txt \
+&&  npm i \
+&&  npm install --global postcss postcss-cli \
 &&  rm -rf /var/cache/apt/* /var/lib/apt/lists/*
 CMD flask run --host=0.0.0.0