*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #17A2B8;
}
section{
    background-color: #fff;
    width: 350px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    padding: 20px;
    border-radius: 6px;
    box-shadow: 0 0 25px rgba(0, 0, 0, 0.5);
}
label{
    padding: 10px;
    font-weight: bold;
    font-size: 18px;
}
input{
    width: 300px;
    font-size: 16px;
    padding: 5px;
    margin-bottom: 20px; 
}
.qr_code{
    padding: 25px;
    width: fit-content;
    display: none;
}