diff --git a/demos/basic.html b/demos/basic.html
index c36a2b9d..977756e7 100644
--- a/demos/basic.html
+++ b/demos/basic.html
@@ -5,7 +5,7 @@
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <title>Basic demo</title>
     <meta name="viewport" content="width=device-width, initial-scale=1">
-    <link rel="stylesheet" type="text/css" media="screen" href="../test/main.css" />
+    <link rel="stylesheet" media="screen" href="../test/main.css" />
     <script src="https://polyfill.io/v2/polyfill.min.js?features=IntersectionObserver"></script>
 </head>
 <body>
