<!DOCTYPE html>
<html lang="fr">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Damier</title>
    <link rel="stylesheet" href="damier.css">
</head>
<body>
    <form method="post" action="damier2.php">
        <label for="ligne">ligne</label>
        <input type="text" name="ligne" require>

        <label for="colum">colone</label>
        <input type="text" name="colum" require>

        <button type="submit">ok</button>
    </form>
</body>
</html>