body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100vh;
}

.nav {
    background-color: #4caf50;
    color: white;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    padding: 15px 0;
    width: 100%;
    margin-bottom: 20px;
    box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.2);
}

.nav button{
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-right: 10px;
}

.nav button:hover {
    background-color: #0056b3;
  }

label {
    font-size: 16px;
    margin-top: 10px;
    display: block;
}

button {
    background-color: #4caf50;
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    margin: 10px 5px;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #45a049;
}