diff --git a/extension/options.html b/extension/options.html
index 9dfb9b1..ba7a732 100644
--- a/extension/options.html
+++ b/extension/options.html
@@ -2,6 +2,11 @@
 
 <meta charset="utf-8" />
 <title>nos2x</title>
+<style>
+  * {
+    font-family: monospace;
+  }
+</style>
 
 <div id="main" />