diff --git a/src/index.html b/src/index.html
index d744a77..2282838 100644
--- a/src/index.html
+++ b/src/index.html
@@ -2,16 +2,9 @@
   <head>
     <meta http-equiv="content-type" content="text/html; charset=utf-8" />
     <title></title>
+    <link rel="stylesheet" href="style.css">
   </head>
   <body>
-    <style type="text/css" media="all">
-      html, body {
-        margin: 0;
-        padding: 0;
-        display: flex;
-        background: linear-gradient(to bottom, dimgray, black);
-      }
-    </style>
     <canvas></canvas>
     <script src="/index.js" charset="utf-8"></script>
   </body>
diff --git a/src/style.css b/src/style.css
new file mode 100644
index 0000000..2540dcb
--- /dev/null
+++ b/src/style.css
@@ -0,0 +1,6 @@
+html, body {
+  margin: 0;
+  padding: 0;
+  display: flex;
+  background: linear-gradient(to bottom left, #222, black);
+}
