body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 50px;
    background-color: #f4f4f4;
}
.container {
    width: 50%;
    margin: auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}
.scanner-form {
    margin-bottom: 20px;
}
input {
    padding: 10px;
    width: 70%;
    border: 1px solid #ccc;
    border-radius: 5px;
}
button {
    padding: 10px 20px;
    background: blue;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
button:hover {
    background: darkblue;
}
ul {
    list-style: none;
    padding: 0;
}
li {
    padding: 10px;
    border-bottom: 1px solid #ccc;
}