diff --git a/index.html b/index.html
index b662ad2..590ac0a 100644
--- a/index.html
+++ b/index.html
@@ -1,20 +1,23 @@
-<!DOCTYPE html>
+<!DOCTYPE html />
+<html lang="en">
    <head>
-   <style>
-      body {
-         margin-top: 2em;
-         display: flex;
-         flex-direction: column;
-         align-items: center;
-      }
-      p {
-         font-size: 2em;
-         text-align: center;
-      }
-      img {
-         width: 250px;
-      }
-   </style>
+      <meta charset="utf-8" />
+      <meta name="viewport" content="width=device-width, initial-scale=1" />
+      <style>
+         body {
+            margin-top: 2em;
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+         }
+         p {
+            font-size: 2em;
+            text-align: center;
+         }
+         img {
+            width: 250px;
+         }
+      </style>
    </head>
    <title>Thesis App</title>
    <body>
