diff --git a/README.md b/README.md
index 28ef019..6bd6781 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ Please note that your deployed page must be served over HTTPS. This is not neces
 
 ## Demo
 
-Check [the WebContainer API demo app](webcontainer.new).
+Check [the WebContainer API demo app](https://webcontainer.new).
 
 Here's an example `main.ts` file:
 
diff --git a/style.css b/style.css
index 2ad55a6..9e717b2 100644
--- a/style.css
+++ b/style.css
@@ -2,10 +2,14 @@
   box-sizing: border-box;
 }
 
+:root {
+  font-family: Inter, system-ui, Segoe UI, Roboto, Helvetica Neue, sans-serif;
+  color: black;
+  background: white;
+}
+
 body {
   margin: 0.5rem 1rem;
-  height: 100vh;
-  font-family: "Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","Roboto","Oxygen","Ubuntu","Cantarell","Fira Sans","Droid Sans","Helvetica Neue",sans-serif;
 }
 
 header {
@@ -39,8 +43,10 @@ textarea {
   background: black;
   color: white;
   padding: 0.5rem 1rem;
-  font-size: 120%;
   margin-bottom: 10px;
+  font-size: 0.9rem;
+  line-height: 1.2rem;
+  font-family: Menlo, Cascadia Code, Consolas, Liberation Mono, monospace;
 }
 
 .container {