diff --git a/src/index.php b/src/index.php
index 838b13c..ad34518 100644
--- a/src/index.php
+++ b/src/index.php
@@ -1,22 +1,28 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <title>Battle</title>
-</head>
-<body>
-<h1>Battle</h1>
-<form id="joinForm">
-    <input type="text" id="username" placeholder="Enter your name" required>
-    <button type="submit">Join Game</button>
-</form>
-<div id="gameContainer" style="display: none;">
-    <div id="gameState"></div>
-    <div id="fighters"></div>
-    <select id="targetPlayer"></select>
-    <button value="basic_attack" id="submitMove">Basic Attack</button>
-</div>
-
-<script src="battle.js"></script>
-</body>
-</html>
\ No newline at end of file
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Battle</title>
+</head>
+<body>
+<h1>Battle</h1>
+<form id="joinForm">
+    <input type="text" id="username" placeholder="Enter your name" required>
+    <select id="gameMode" required>
+        <option value="" disabled selected>Select game mode</option>
+        <option value="solo">Solo</option>
+        <option value="team">Team</option>
+    </select>
+    <input id="team" type="number" style="display: none;">
+    <button type="submit">Join Game</button>
+</form>
+<div id="gameContainer" style="display: none;">
+    <div id="gameState"></div>
+    <div id="fighters"></div>
+    <select id="targetPlayer"></select>
+    <button value="basic_attack" id="submitMove">Basic Attack</button>
+</div>
+
+<script src="battle.js"></script>
+</body>
+</html>
