diff --git a/src/index.html b/src/index.html
index 3019e36..acce3e0 100644
--- a/src/index.html
+++ b/src/index.html
@@ -5,6 +5,20 @@
 	<meta name="viewport" content="width=device-width, initial-scale=1">
 	<title>CG1 MDI</title>
 	<script src="script.js" defer></script>
+	<style>
+		body {
+			display: flex;
+			justify-content: center;
+			align-items: center;
+			min-height: 100vh;
+			margin: 0;
+			background-color: #1e1e2e;
+		}
+		#cv {
+			border: solid 2px black;
+			border-radius: 20px;
+		}
+	</style>
 </head>
 <body>
 	<canvas id="cv" width="800" height="600"></canvas>
