diff --git a/.gitignore b/.gitignore
index fdc6906..e5742b0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ out/
 .sw[opqr]
 *.tar.gz
 .pat
+out*
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..c6e6ec3
--- /dev/null
+++ b/index.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Discover the Rainbow</title>
+    <style>
+        body {
+            text-align: center;
+            font-family: Arial, sans-serif;
+        }
+        h1 {
+            margin-top: 50px;
+        }
+        .links {
+            margin-top: 20px;
+        }
+        .links a {
+            display: block;
+            margin: 10px 0;
+            font-size: 18px;
+            color: blue;
+            text-decoration: none;
+        }
+        .links a:hover {
+            text-decoration: underline;
+        }
+    </style>
+</head>
+<body>
+    <h1>Discover the Rainbow</h1>
+    <div class="links">
+        <a href="./out1">Iteration 1</a>
+        <a href="./out2">Iteration 2</a>
+        <a href="./out3">Iteration 3</a>
+    </div>
+</body>
+</html>
diff --git a/out/index.html b/out/index.html
index e9e18ad..1209be9 100644
--- a/out/index.html
+++ b/out/index.html
@@ -77,7 +77,7 @@
                 if (i == -21) {
                     imageName = 'hsv.png';
                 } else {
-                    imageName = 'v' + i + '.jpg';
+                    imageName = 'v' + i + '.png';
                 }
                 let img = document.createElement('img');
                 img.src = imageName;
