Style quote blocks, h2, and h3.

default_environment/stylesheet/main.css

@@ -9,6 +9,8 @@
     --src-block-border-color: #84828f;
     --src-block-language-color: #0a0a0a;
     --src-block-language-background: #84828f;
+
+    --quote-block-border-color: #84828f;
 }
 
 body {
@@ -75,6 +77,24 @@ body {
             margin: 0.5rem;
         }
     }
+
+    .quote_block {
+        border-left: 1px solid var(--quote-block-border-color);
+        padding-left: 1rem;
+        margin-left: 2rem;
+    }
+
+    h2 {
+        font-size: 1.8rem;
+        font-weight: 600;
+        padding-bottom: 1rem;
+    }
+
+    h3 {
+        font-size: 1.5rem;
+        font-weight: 500;
+        padding-bottom: 1rem;
+    }
 }
 
 /* A stand-alone blog post (not in a blog stream). */

default_environment/templates/html/quote_block.dust

@@ -1,3 +1,3 @@
-<blockquote>{#.children}
+<blockquote class="quote_block">{#.children}
   {>element/}
 {/.children}</blockquote>