GitBucket
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<title>グループ選択</title>
<link rel="stylesheet" href="style.css">
</head>
<body class="center">
<div class="card">
<h2>グループ名を入力</h2>
<form action="map4.html" method="get">
<input type="text" name="group" placeholder="例：teamA" required>
<button type="submit">地図へ</button>
</form>
</div>
</body>
</html>