diff --git a/src/static/admin.html b/src/static/admin.html
index a407067..4285397 100644
--- a/src/static/admin.html
+++ b/src/static/admin.html
@@ -1,42 +1,39 @@
 <!DOCTYPE html>
 <html>
-  <head>
-    <meta charset="utf-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Content Manager</title>
-    <script src="https://identity.netlify.com/v1/netlify-identity-widget.js"></script>
-    <link rel="stylesheet" href="https://unpkg.com/@staticcms/app@^2.0.0/dist/main.css" />
-  </head>
-  <body>
-    <!-- Include the script that builds the page and powers Netlify CMS -->
-    <script src="https://unpkg.com/@staticcms/app@^2.0.0/dist/static-cms-app.js"></script>
-    <script src="//cdn.jsdelivr.net/gh/highlightjs/cdn-release@9.17.1/build/highlight.min.js"></script>
-    <script type="module">
-      import htm from "https://unpkg.com/htm?module";
-      const html = htm.bind(h);
-      const PostPreview = createClass({
-        render: function () {
-          const { entry, widgetFor } = this.props;
-          const image = entry.data.cover;
-          let imageMarkup = "";
-          if (image) {
-            imageMarkup = html`<div><img src="${image.toString()}" /></div>`;
-          }
-          return html`
-            <div>
-              <h1 className="blogTitle">${entry.data.title}</h1>
-              <caption className="blogSubTitle">
-                ${entry.data.subtitle}
-              </caption>
-              ${imageMarkup}
-              <div className="text">${widgetFor("body")}</div>
-            </div>
-          `;
-        },
-      });
-      CMS.registerPreviewStyle("/preview.css");
-      CMS.registerPreviewTemplate("pages", PostPreview);
-      CMS.init();
-    </script>
-  </body>
+	<head>
+		<meta charset="utf-8" />
+		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
+		<title>Content Manager</title>
+		<script src="https://identity.netlify.com/v1/netlify-identity-widget.js"></script>
+		<link rel="stylesheet" href="https://unpkg.com/@staticcms/app@^2.0.0/dist/main.css" />
+	</head>
+	<body>
+		<!-- Include the script that builds the page and powers Netlify CMS -->
+		<script src="https://unpkg.com/@staticcms/app@^2.0.0/dist/static-cms-app.js"></script>
+		<script src="//cdn.jsdelivr.net/gh/highlightjs/cdn-release@9.17.1/build/highlight.min.js"></script>
+		<script type="module">
+			import htm from 'https://unpkg.com/htm?module';
+			const html = htm.bind(h);
+			const PostPreview = ({ entry, widgetFor }) => {
+				const image = entry.data.cover;
+				let imageMarkup = '';
+				if (image) {
+					imageMarkup = html`<div><img src="${image.toString()}" /></div>`;
+				}
+				return html`
+					<div>
+						<h1 className="blogTitle">${entry.data.title}</h1>
+						<caption className="blogSubTitle">
+							${entry.data.subtitle}
+						</caption>
+						${imageMarkup}
+						<div className="text">${widgetFor('body')}</div>
+					</div>
+				`;
+			};
+			CMS.registerPreviewStyle('/preview.css');
+			CMS.registerPreviewTemplate('pages', PostPreview);
+			CMS.init();
+		</script>
+	</body>
 </html>
