diff --git a/style.css b/style.css
index ebfb738..e83e0ab 100644
--- a/style.css
+++ b/style.css
@@ -1,6 +1,6 @@
 body {
   font-family: DejaVu Sans Mono, Noto Sans Mono, Hack, monospace;
-  max-width: 720px;
+  width: min(720px, 90%);
   margin-left: auto;
   margin-right: auto;
   text-align: center;