body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
}

.container {
    width: 300px;
    margin: 100px auto;
    padding: 20px;
    background-color: greenyellow;
    text-align: center;
    border-radius: 8px;
}

input {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
}

button {
    width: 100%;
    padding: 8px;
    background-color: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}

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

#qrCode {
    margin-top: 15px;
}
@media screen and (max-width: 600px) {
    .container {
        max-width: 100%;
        min-width: 100px;
        max-height: 100%;
    }
}
@media (min-width: 300px) and (max-width: 768px) {
    body {
        margin: 0;
        padding: 10px;
    }
}
@media screen and (min-width: 300px) {
    .box {
        max-width: 100%;
        min-width: 100px;
        max-height: 100%;
    }
}