Improve author/timestamp

src/css/app.css

@@ -1 +1,8 @@
 @import "~tufte-css/tufte.css";
+
+p.meta {
+  margin-top: 1rem;
+  margin-bottom: 1rem;
+  font-size: 1.2rem;
+  line-height: 1;
+}

src/pages/articles/show_page.cr

@@ -10,8 +10,8 @@ class Articles::ShowPage < MainLayout
     if subtitle = page.subtitle
       para subtitle, class: "subtitle"
     end
-    para do
-      text "#{page.author} #{created_at(page.created_at)}"
+    para class: "meta" do
+      text "#{page.author} on #{page.created_at.to_s("%F")}"
     end
     article do
       section do
@@ -19,8 +19,4 @@ class Articles::ShowPage < MainLayout
       end
     end
   end
-
-  def created_at(time : Time) : String
-    "at #{time.to_s("%I:%M%p")} on #{time.to_s("%F")}"
-  end
 end