body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container{
    text-align: center;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 4px 6px rgba(0,0,0,0.1);
}
input, button {
    margin:10px 0;
    padding:10px;
    font-size: 16px;
}
button{
    background-color: #007BFF;
    color: white;
    border: none;
    cursor: pointer;
}
button:hover{
    background-color: #0056b3;
}
#message {
    color: red;
    font-weight: bold;
}