diff --git a/rtfd/public/html/index.html b/rtfd/public/html/index.html
index 4162792..6a68c79 100644
--- a/rtfd/public/html/index.html
+++ b/rtfd/public/html/index.html
@@ -12,8 +12,13 @@
   <body>
 
     <header>
-      Header.
       <img src="images/logo.svg" alt="Logo of the website.">
+      <nav aria-label="Main navigation">
+        <ul>
+          <li><a href="index.html">Home</a></li>
+          <li><a href="other.html">Other</a></li>
+        </ul>
+      </nav>
     </header>
 
     <main>
diff --git a/rtfd/public/html/style/main.css b/rtfd/public/html/style/main.css
index 5bf2815..710853f 100644
--- a/rtfd/public/html/style/main.css
+++ b/rtfd/public/html/style/main.css
@@ -31,6 +31,9 @@ text-align: start;
 
 header {
 background-color: #300;
+display: flex;
+gap: 1em;
+justify-content: space-between;
 padding: 1em 2em;
 }
 
@@ -106,12 +109,30 @@ ul li::marker {
 content: "×";
 }
 
+header nav a {
+text-decoration: none;
+}
+header nav a:focus-visible,
+header nav a:hover {
+background-color: blue;
+}
+header nav ul {
+display: flex;
+gap: 1em;
+list-style: none;
+padding: 0;
+}
+header nav li::marker {
+content: none;
+}
+
 a {
 color: inherit;
 }
 a:visited {
 }
-a:focus-visible, a:hover {
+a:focus-visible,
+a:hover {
 }
 a:active {
 }
