optimize dockerfile

app/Dockerfile

@@ -1,28 +1,28 @@
 FROM ubuntu:latest
+
 MAINTAINER wes kerfoot "wjak56@gmail.com"
 
 RUN apt-get update -y
-RUN apt-get install -y python3-pip python3-dev build-essential sassc jq curl
-RUN curl -sL https://deb.nodesource.com/setup_11.x | bash
-RUN apt-get install -y nodejs
+RUN apt-get install -y curl
+RUN curl -sL https://deb.nodesource.com/setup_13.x | bash
+RUN apt-get update -y
+RUN apt-get install -y python3-pip python3-dev build-essential sassc jq nodejs
 RUN npm install -g uglifycss uglifyjs
 
 COPY . ./src
+COPY run.sh /run.sh
+COPY blogPosts.json /blogPosts.json
 
 WORKDIR /src
 
-RUN npm install
-RUN pip3 install -r /src/requirements.txt
-RUN mkdir -p ./build/styles ./build/scripts
+RUN npm install && pip3 install -r /src/requirements.txt && \
+      mkdir -p ./build/styles ./build/scripts && \
+      npm run-script build_riotblog && \
+      npm run-script build_editor
 
-RUN npm run-script build_riotblog
-RUN npm run-script build_editor
-RUN sassc ./styles/riotblog.scss > ./styles/riotblog.intermediate.min.css
-RUN cp ./styles/*.css ./build/styles/
-RUN uglifycss ./styles/*.css > ./build/styles/riotblog.min.css
-
-COPY run.sh /run.sh
-COPY blogPosts.json /blogPosts.json
+RUN sassc ./styles/riotblog.scss > ./styles/riotblog.intermediate.min.css && \
+      cp ./styles/*.css ./build/styles/ && \ 
+      uglifycss ./styles/*.css > ./build/styles/riotblog.min.css
 
 ENTRYPOINT ["/bin/bash", "/run.sh"]
 CMD ["/src/website.py"]

app/styles/riotblog.scss

@@ -66,7 +66,7 @@ html {
   font-weight: 400;
   color: black;
   @media (max-width: 600px) {
-    font-size: 1.6em;
+    font-size: 1.7em;
   }
   @media (max-width: 530px) {
     font-size: 1.3em;
@@ -475,8 +475,8 @@ $bg-color: red;
 
 .post-card {
   @extend .shadow;
-  max-width: 80%;
-  @media(max-width: 400px) {
+  max-width: 85%;
+  @media(max-width: 500px) {
     max-width: 95%;
   }
 }