body {
    font-family: Arial;
    text-align: center;
    background: #eef;
}

div {
    background: white;
    padding: 20px;
    margin: 20px auto;
    width: 300px;
    border-radius: 10px;
}

input {
    width: 90%;
    padding: 8px;
    margin: 5px;
}

button {
    padding: 10px;
    width: 95%;
    background: blue;
    color: white;
    border: none;
}

button:hover {
    background: darkblue;
}