<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link href="css/css/bootstrap.min.css" rel="stylesheet">
    <title>Login</title>
</head>
<body>
    <h3>Login</h3>
    <div class="container mt-4">
        <div class="row">
            <div class="col-md-12">
                <form action="tampil_kalkulator" method="post" >

                    <div class="form-group mb-3">
                        <label for="bil1">Bilangan 1</label>
                        <input type="text" 
                            class="form-control" 
                            id="bil1" 
                            name="bil1" >
                    </div>

                    <div class="form-group mb-3">
                        <label for="nama">Bilangan 2</label>
                        <input type="text" 
                            class="form-control" 
                            id="bil2" 
                            name="bil2" >
                         
                    </div>

                    <button type="submit" class="btn btn-secondary" name="operasi" value="tambah">Penjumlahan (+)</button>
                    <button type="submit" class="btn btn-secondary" name="operasi" value="kurang">Pengurangan (-)</button>
                    <button type="submit"  class="btn btn-secondary"name="operasi" value="kali">Perkalian (×)</button>
                    <button type="submit" class="btn btn-secondary" name="operasi" value="bagi">Pembagian (÷)</button>
     
                </form>
            </div>
        </div>
    </div>

    <script src="css/js/jQuery v3.2.0.js"></script> 
    <script src="css/js/bootstrap.min.js"></script>
</body>
</html>