h1 {
    text-align: center;
}

form {
    width: 300px;
    margin: 0 auto;
}

label {
    font-weight: bold;
}

input[type="text"],
button {
    display: block;
    width: 100%;
    margin-bottom: 10px;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 10px;
    border: none;
    cursor: pointer;
}