GitBucket
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>フラッシュ暗算</title>
<link rel="stylesheet" href="game.css">
</head>
<body>
<h1>フラッシュ暗算</h1>
<div id="flash-container">
<div id="number-display">0</div>
<button id="start-button">スタート</button>
<input type="text" id="answer" placeholder="答えを入力">
<button id="check-button">チェック</button>
</div>
<div id="result"></div>
<script src=""></script>
</body>
</html>