Fix blog h1 styling

src/app/resources/assets/main-70s.css

@@ -768,6 +768,10 @@ section#auth h3 {
     margin: 50px 20px;
 }
 
+.post-content h1 {
+    font-size: 36pt;
+}
+
 .post-content h2 {
     font-size: 28pt;
 }