body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 20px;
}

h1 {
    text-align: center;
}

div {
    background-color: white;
    padding: 20px;
    margin: 20px auto;
    border-radius: 5px;
    max-width: 500px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}

input, select {
    margin: 10px 0;
    padding: 10px;
    width: 100%;
    box-sizing: border-box;
}

button {
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    cursor: pointer;
    width: 100%;
}

button:hover {
    background-color: #0056b3;
}

#itemDetails {
    margin-top: 20px;
}