body {
    font-family: sans-serif;
    background-color: #f7f7f7;
    text-align: center;
    padding: 40px;
}

h1 {
    color: #4a90e2;
}

input[type="text"] {
    padding: 8px;
    width: 200px;
    font-size: 16px;
}

button {
    padding: 8px 16px;
    margin: 10px;
    font-size: 16px;
    cursor: pointer;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    margin: 4px 0;
}


#resultado {
    margin-top: 20px;
    font-weight: bold;
    color: green;
    font-size: 20px;
}