diff --git a/src/index.html b/src/index.html
index 3a1b0e8..fdc78a7 100644
--- a/src/index.html
+++ b/src/index.html
@@ -6,3 +6,16 @@ title: kdl - Kat's Document Language
 <header class="py-10 bg-gray-300">
   <h1 class="text-4xl text-center">kdl - Kat's Document Language</h1>
 </header>
+
+<section class="px-2 md:px-4 prose prose-xl mx-auto" id="description">
+  <p>
+    kdl is a document language, mostly based on
+    <a href="https://sdlang.org/">SDLang</a>, with xml-like semantics that looks
+    like you're invoking a bunch of CLI commands!
+  </p>
+
+  <p>
+    It's meant to be used both as a serialization format and a configuration
+    language, and is relatively light on syntax compared to XML.
+  </p>
+</section>