diff --git a/water.css b/water.css
index b40c802..11e6a9d 100644
--- a/water.css
+++ b/water.css
@@ -3,7 +3,7 @@ body {
   color: #dbdbdb;
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
   text-rendering: optimizeLegibility;
-  margin: 20px;
+  margin: 20px auto;
   max-width: 800px;
   line-height: 1.4;
 }