diff --git a/index.html b/index.html
index e7a3281..18a3ff1 100644
--- a/index.html
+++ b/index.html
@@ -5,7 +5,9 @@
 </head>
 
 <body>
-  DnD obj and mtl file
+  <div style="display:flex;justify-content:center;font-size:20px;">
+    Drag'n'drop <code style="padding:0px 5px;color:darkcyan;">.obj</code> and <code style="padding:0px 5px;color:darkcyan;">.mtl</code> file
+  </div>
 </body>
 
 <script type="module">
