add CSS for UI shell

- add CSS for all UI elements outside of article content
- add additional CSS classes to be activated by JavaScript
- add Roboto and Roboto Mono font packages as dev dependencies
- change navigation button in toolbar to a toggle

1 files changed, 11 insertions, 0 deletions

diff --git a/src/css/article.css b/src/css/article.css
new file mode 100644
index 0000000..166b9c2
--- /dev/null
+++ b/src/css/article.css
@@ -0,0 +1,11 @@
+.doc {
+  margin: 0 auto;
+  max-width: 40rem;
+}
+
+@media (min-width: 1024px) {
+  .doc {
+    margin: 0 2rem;
+    max-width: 54rem;
+  }
+}