diff --git a/_includes/layouts/base.njk b/_includes/layouts/base.njk
index cebf438..df8e3b7 100644
--- a/_includes/layouts/base.njk
+++ b/_includes/layouts/base.njk
@@ -14,31 +14,25 @@
 		{#- <meta name="generator" content="{{ eleventy.generator }}"> #}
 
 {#-
-		Choices for CSS:
+		CSS bundles are provided via the eleventy-plugin-bundle plugin:
+		1. You can add to them using `{% css %}`
+		2. You can get from them using `{% getBundle "css" %}` or `{% getBundleFileUrl "css" %}`
 
-		1. External files (best with local dev server live reload)
-
-		<link rel="stylesheet" href="/css/index.css">
-		<link rel="stylesheet" href="/css/message-box.css">
-		<link rel="stylesheet" href="/css/prism-okaidia.css">
-		<link rel="stylesheet" href="/css/prism-diff.css">
-
-		2. Inlined (fastest site performance in production)
-#}
-		<style>
-		{% include "public/css/index.css" %}
-		{% include "public/css/message-box.css" %}
-		{% include "node_modules/prismjs/themes/prism-okaidia.css" %}
-		{% include "public/css/prism-diff.css" %}
-		</style>
-{#
-		3. You could even swap between the two methods above using {% if eleventy.env.runMode === "serve" %}
-		4. Concatenate CSS to one file (site performance is slower than 2 but faster than 1):
-				https://www.11ty.dev/docs/quicktips/concatenate/
-		5. Use a bundler
-				e.g. Vite https://www.11ty.dev/docs/server-vite/
-				Or search for additional community plugins for esbuild, rollup, webpack, etc.
+		Learn more: https://github.com/11ty/eleventy-plugin-bundle
 #}
+
+		{#- Add to the CSS bundle #}
+		{%- css %}{% include "public/css/index.css" %}{% endcss %}
+		{%- css %}{# add your own CSS! #}{% endcss %}
+
+		{#- Render the CSS bundle #}
+		{%- if eleventy.env.runMode === "serve" %}
+		{# External files (local dev live reload will refresh without page reload) #}
+		<link rel="stylesheet" href="{% getBundleFileUrl "css" %}">
+		{%- else  %}
+		{# Inlined CSS (fastest site performance in production) #}
+		<style>{% getBundle "css" %}</style>
+		{%- endif %}
 	</head>
 	<body>
 		<a href="#skip" class="visually-hidden">Skip to main content</a>
diff --git a/_includes/layouts/home.njk b/_includes/layouts/home.njk
index 5f9c02d..16e9819 100644
--- a/_includes/layouts/home.njk
+++ b/_includes/layouts/home.njk
@@ -2,6 +2,7 @@
 layout: layouts/base.njk
 ---
 <!-- Delete this message -->
+{%- css %}{% include "public/css/message-box.css" %}{% endcss %}
 <div class="message-box">
 	<ol>
 		<li>Edit the <code>_data/metadata.json</code> with your blog’s information.</li>
diff --git a/_includes/layouts/post.njk b/_includes/layouts/post.njk
index 68228ea..bf4fa82 100644
--- a/_includes/layouts/post.njk
+++ b/_includes/layouts/post.njk
@@ -1,6 +1,11 @@
 ---
 layout: layouts/base.njk
 ---
+{%- css %}
+/* Only include the syntax highlighter CSS on blog posts */
+{% include "node_modules/prismjs/themes/prism-okaidia.css" %}
+{% include "public/css/prism-diff.css" %}
+{%- endcss %}
 <h1>{{ title }}</h1>
 
 <ul class="post-metadata">
diff --git a/eleventy.config.js b/eleventy.config.js
index b345cee..e06e432 100644
--- a/eleventy.config.js
+++ b/eleventy.config.js
@@ -3,6 +3,7 @@ const markdownItAnchor = require("markdown-it-anchor");
 
 const pluginRss = require("@11ty/eleventy-plugin-rss");
 const pluginSyntaxHighlight = require("@11ty/eleventy-plugin-syntaxhighlight");
+const pluginBundle = require("@11ty/eleventy-plugin-bundle");
 const pluginNavigation = require("@11ty/eleventy-navigation");
 const { EleventyHtmlBasePlugin } = require("@11ty/eleventy");
 
@@ -31,6 +32,7 @@ module.exports = function(eleventyConfig) {
 	});
 	eleventyConfig.addPlugin(pluginNavigation);
 	eleventyConfig.addPlugin(EleventyHtmlBasePlugin);
+	eleventyConfig.addPlugin(pluginBundle);
 
 	// Filters
 	eleventyConfig.addFilter("readableDate", (dateObj, format, zone) => {
diff --git a/package.json b/package.json
index eac8da0..7ce05c7 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
 		"@11ty/eleventy": "2.0.0-beta.2",
 		"@11ty/eleventy-img": "^3.0.0",
 		"@11ty/eleventy-navigation": "^0.3.5",
+		"@11ty/eleventy-plugin-bundle": "^1.0.1",
 		"@11ty/eleventy-plugin-rss": "^1.2.0",
 		"@11ty/eleventy-plugin-syntaxhighlight": "^4.2.0",
 		"luxon": "^3.2.1",
