diff --git a/webui/src/web-components/demo/mermaid-test/index.html b/webui/src/web-components/demo/mermaid-test/index.html
index e2fd202..3635122 100644
--- a/webui/src/web-components/demo/mermaid-test/index.html
+++ b/webui/src/web-components/demo/mermaid-test/index.html
@@ -1,34 +1,39 @@
-<!DOCTYPE html>
+<!doctype html>
 <html lang="en">
-<head>
-  <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <title>Mermaid Diagram Test</title>
-  <script type="module" src="./mermaid-test.ts"></script>
-  <style>
-    body {
-      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
-      padding: 20px;
-      max-width: 1000px;
-      margin: 0 auto;
-    }
-    h1 {
-      color: #333;
-    }
-    .container {
-      border: 1px solid #ddd;
-      border-radius: 4px;
-      padding: 20px;
-      margin: 20px 0;
-    }
-  </style>
-</head>
-<body>
-  <h1>Mermaid Diagram Testing</h1>
-  <p>This page tests the integration of Mermaid diagrams in the markdown renderer.</p>
-  
-  <div class="container">
-    <mermaid-test-component></mermaid-test-component>
-  </div>
-</body>
-</html>
\ No newline at end of file
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Mermaid Diagram Test</title>
+    <script type="module" src="./mermaid-test.ts"></script>
+    <style>
+      body {
+        font-family:
+          -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
+          Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
+        padding: 20px;
+        max-width: 1000px;
+        margin: 0 auto;
+      }
+      h1 {
+        color: #333;
+      }
+      .container {
+        border: 1px solid #ddd;
+        border-radius: 4px;
+        padding: 20px;
+        margin: 20px 0;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>Mermaid Diagram Testing</h1>
+    <p>
+      This page tests the integration of Mermaid diagrams in the markdown
+      renderer.
+    </p>
+
+    <div class="container">
+      <mermaid-test-component></mermaid-test-component>
+    </div>
+  </body>
+</html>