diff --git a/index.html b/index.html
index eeb4d1b..72eaf50 100644
--- a/index.html
+++ b/index.html
@@ -1,17 +1,22 @@
 <!DOCTYPE html>
 <html>
- <head>
-   <meta charset="UTF-8" />
-   <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
-   <!-- avoid content hiding behind react-bootstrap navbar -->
-   <style type="text/css">
-    body {
-        padding-top: 100px;
-    }
-   </style>
-   <title>GTFS Display</title>
- </head>
- <body>
- <div id="root"></div>
- </body>
+  <head>
+    <meta charset="UTF-8">
+    <!-- load resources for bootstrap -->
+    <link
+      rel="stylesheet"
+      href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css"
+      integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3"
+      crossorigin="anonymous">
+    <!-- avoid content hiding behind react-bootstrap navbar -->
+    <style type="text/css">
+      body {
+          padding-top: 100px;
+      }
+    </style>
+    <title>GTFS Display</title>
+  </head>
+  <body>
+    <div id="root"></div>
+  </body>
 </html>
