diff --git a/_layouts/chat-transcript.html b/_layouts/chat-transcript.html
deleted file mode 100644
index f29a5d9d8..000000000
--- a/_layouts/chat-transcript.html
+++ /dev/null
@@ -1,50 +0,0 @@
-<!DOCTYPE html>
-<html lang="{{ site.lang | default: "en-US" }}">
-  <head>
-    <meta charset="UTF-8">
-
-{% seo %}
-<meta property="og:image" content="{{ site.baseurl }}/screenshot.png">
-<meta property="twitter:image" content="{{ site.baseurl }}/screenshot.png">
-    <link rel="preconnect" href="https://fonts.gstatic.com">
-    <link rel="preload" href="https://fonts.googleapis.com/css?family=Open+Sans:400,700&display=swap" as="style" type="text/css" crossorigin>
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="theme-color" content="#157878">
-    <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>
-      .main-content blockquote {
-        border-left-color: #159957;
-      }
-    </style>
-  </head>
-  <body>
-    <a id="skip-to-content" href="#content">Skip to the content.</a>
-
-    <header class="page-header" role="banner">
-      <h1 class="project-name">{{ page.title | default: site.title | default: site.github.repository_name }}</h1>
-      <h2 class="project-tagline">{{ page.description | default: site.description | default: site.github.project_tagline }}</h2>
-      <a href="{{ site.baseurl }}/" class="btn">Home</a>
-      <a href="{{ site.baseurl }}/examples/" class="btn">Examples</a>
-      {% if site.github.is_project_page %}
-        <a href="{{ site.github.repository_url }}" class="btn">GitHub</a>
-      {% endif %}
-      {% if site.show_downloads %}
-        <a href="{{ site.github.zip_url }}" class="btn">Download .zip</a>
-        <a href="{{ site.github.tar_url }}" class="btn">Download .tar.gz</a>
-      {% endif %}
-    </header>
-
-    <main id="content" class="main-content" role="main">
-      {{ content }}
-
-      <footer class="site-footer">
-        {% if site.github.is_project_page %}
-          <span class="site-footer-owner"><a href="{{ site.github.repository_url }}">{{ site.github.repository_name }}</a> is maintained by <a href="{{ site.github.owner_url }}">{{ site.github.owner_name }}</a>.</span>
-        {% endif %}
-        <span class="site-footer-credits">This page was generated by <a href="https://pages.github.com">GitHub Pages</a>.</span>
-      </footer>
-    </main>
-  </body>
-</html>
diff --git a/_layouts/default.html b/_layouts/default.html
index 2740cab45..f29a5d9d8 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -13,6 +13,11 @@
     <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>
+      .main-content blockquote {
+        border-left-color: #159957;
+      }
+    </style>
   </head>
   <body>
     <a id="skip-to-content" href="#content">Skip to the content.</a>
diff --git a/examples/css-exercises.md b/examples/css-exercises.md
index c02fcd104..d1a7acaf8 100644
--- a/examples/css-exercises.md
+++ b/examples/css-exercises.md
@@ -1,6 +1,3 @@
----
-layout: chat-transcript
----
 
 # Complete a css exercise with aider and GPT-4
 
