diff --git a/_layouts/default.html b/_layouts/default.html
index 7f83c81..9757354 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -3,14 +3,17 @@
   <head>
     <meta charset="utf-8">
     <title>{{ page.title }}</title>
+    <link rel="stylesheet" href="assets/css/main.css" />
   </head>
   <body>
+    <div class="content">
     <h1>{{ page.title }}</h1>
     <section>
       {{ content }}
     </section>
+   </div>
     <footer>
-      &copy; IDAES project
+      &copy; 2024 The IDAES Project
     </footer>
   </body>
 </html>
diff --git a/assets/css/main.css b/assets/css/main.css
new file mode 100644
index 0000000..99643a5
--- /dev/null
+++ b/assets/css/main.css
@@ -0,0 +1,7 @@
+body {
+  font-family: "Karla", sans-serif;
+}
+body > div {
+  margin: 20px;
+}
+
