Update .gitlab-ci.yml, style.css, index.html files

.gitlab-ci.yml

@@ -1,12 +1,18 @@
-image: alpine:latest
+# This file is a template, and might need editing before it works on your project.
+# To contribute improvements to CI/CD templates, please follow the Development guide at:
+# https://docs.gitlab.com/ee/development/cicd/templates.html
+# This specific template is located at:
+# https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Pages/HTML.gitlab-ci.yml
 
+# Full project: https://gitlab.com/pages/plain-html
 pages:
   stage: deploy
   script:
-  - echo 'Nothing to do...'
+    - mkdir .public
+    - cp -r * .public
+    - mv .public public
   artifacts:
     paths:
-    - public
-    expire_in: 1 day
-  only:
-  - master
+      - public
+  rules:
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH