diff --git a/404.html b/404.html
index 2e2cd3a..a488acf 100644
--- a/404.html
+++ b/404.html
@@ -57,6 +57,10 @@
             margin-right: auto;
             margin-left: auto;
         }
+
+        .darkmode--activated .center {
+            color: #fff;
+        }
     </style>
     <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
     <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
@@ -75,6 +79,30 @@
         <h1>Ошибка 404</h1>
         <p>Здесь ничего нет, зря ищешь. Приходи, когда сайт будет готов.</p>
     </div>
+
+    <script src="https://cdn.jsdelivr.net/npm/darkmode-js@1.5.7/lib/darkmode-js.min.js"></script>
+    <script>
+        const options = {
+            bottom: '64px', // default: '32px'
+            right: 'unset', // default: '32px'
+            left: '32px', // default: 'unset'
+            time: '0.5s', // default: '0.3s'
+            mixColor: '#fff', // default: '#fff'
+            backgroundColor: '#fff',  // default: '#fff'
+            buttonColorDark: '#100f2c',  // default: '#100f2c'
+            buttonColorLight: '#fff', // default: '#fff'
+            saveInCookies: false, // default: true,
+            label: '🌓', // default: ''
+            autoMatchOsTheme: true // default: true
+        }
+
+        const darkmode = new Darkmode(options);
+        darkmode.showWidget();
+        function addDarkmodeWidget() {
+            new Darkmode().showWidget();
+        }
+        window.addEventListener('load', addDarkmodeWidget);
+    </script>
 </body>
 
 </html>
\ No newline at end of file
diff --git a/index.html b/index.html
index f8837fd..c3b5c01 100644
--- a/index.html
+++ b/index.html
@@ -46,7 +46,7 @@
         }
 
         nav {
-            background-color: #F8F9FA;
+            background-color: #f8f8f8;
             box-sizing: border-box;
             display: flex;
             align-items: center;
@@ -63,6 +63,18 @@
             margin-right: auto;
             margin-left: auto;
         }
+
+        .darkmode--activated .center {
+            color: #fff;
+        }
+
+        .darkmode--activated .center a {
+            color: #5e5eff;
+        }
+
+        .darkmode--activated .center a:visited {
+            color: #895eff;
+        }
     </style>
     <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
     <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
@@ -86,8 +98,32 @@
             <li><a href="mailto:i_am@weryskok.ru">i_am@WerySkok.ru</a></li>
             <li><a href="mailto:weryskok@gmail.com">weryskok@gmail.com</a></li>
         </ul>
-
     </div>
+    
+    <script src="https://cdn.jsdelivr.net/npm/darkmode-js@1.5.7/lib/darkmode-js.min.js"></script>
+    <script>
+        const options = {
+            bottom: '64px', // default: '32px'
+            right: 'unset', // default: '32px'
+            left: '32px', // default: 'unset'
+            time: '0.5s', // default: '0.3s'
+            mixColor: '#fff', // default: '#fff'
+            backgroundColor: '#fff',  // default: '#fff'
+            buttonColorDark: '#100f2c',  // default: '#100f2c'
+            buttonColorLight: '#fff', // default: '#fff'
+            saveInCookies: false, // default: true,
+            label: '🌓', // default: ''
+            autoMatchOsTheme: true // default: true
+        }
+
+        const darkmode = new Darkmode(options);
+        darkmode.showWidget();
+        function addDarkmodeWidget() {
+            new Darkmode().showWidget();
+        }
+        window.addEventListener('load', addDarkmodeWidget);
+    </script>
+
 </body>
 
 </html>
\ No newline at end of file