body {
    text-align: center;
    font-family: Arial, sans-serif;
    padding: 0px;
    margin: 0px;
    width: 256px;
    background-color: #fff8d1;
}
.textbox {
    width: 90%;
    max-width: 300px;
    background-color: #9ab3ed;
}
.submit-btn {
    margin-top: 10px;
}
.note-list {
    margin-top: 20px;
}
.note-item {
    margin-bottom: 10px;
}