diff --git a/_layouts/default.html b/_layouts/default.html
index 095ea6d36..2740cab45 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -13,9 +13,6 @@
     <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
     <link rel="stylesheet" href="{{ '/assets/css/style.css?v=' | append: site.github.build_revision | relative_url }}">
     {% include head-custom.html %}
-    <style>
-    {% include head-custom.css %}
-    </style>
   </head>
   <body>
     <a id="skip-to-content" href="#content">Skip to the content.</a>
diff --git a/assets/css/style.scss b/assets/css/style.scss
index 480ee1d3e..dbe0cb8a8 100644
--- a/assets/css/style.scss
+++ b/assets/css/style.scss
@@ -3,3 +3,45 @@
 
 @import "{{ site.theme }}";
 
+.main-content blockquote, .main-content h4 {
+  border: 0.1rem solid #155799;
+  border-radius: 0.5rem;
+  background-color: #e0ecf4;
+  padding: 1.2rem 0.75rem 0.75rem 0.75rem;
+  position: relative;
+  margin-top: 2rem;
+  color: #606c71;
+  margin-right: 0;
+}
+.main-content blockquote::before, .main-content h4::before {
+  content: "aider";
+  display: inline-block;
+  position: absolute;
+  top: -1rem;
+  left: 0.5;
+  padding: 0rem 0.5rem;
+  font-weight: bold;
+  background-color: #e0ecf4;
+  border: 0.05rem solid #155799;
+  border-radius: 0.5rem;
+  color: #606c71;
+}
+
+.main-content h4 {
+  border-color: #159957;
+  background-color: #e0f2ef;
+}
+.main-content h4::before {
+  content: "user";
+  border-color: #159957;
+  color: #606c71;
+  background-color: #e0f2ef;
+}     
+.btn {
+  display: inline-block;
+  width: auto;
+}
+.btn + .btn {
+  margin-top: 0;
+  margin-left: 0.75rem;
+}
