body {
    font-family: Arial, sans-serif;
    background: #f2f2f2;
    margin: 0;
    padding: 10px;
}

h2 {
    text-align: center;
}

.btn {
    display: block;
    width: 90%;
    margin: 15px auto;
    padding: 20px;
    background: #007bff;
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 12px;
    font-size: 18px;
}

.btn:hover {
    background: #0056b3;
}

input, select, button {
    width: 90%;
    padding: 15px;
    margin: 10px auto;
    display: block;
    border-radius: 8px;
    border: 1px solid #ccc;
    font-size: 16px;
}

button {
    background: green;
    color: white;
    border: none;
}