body {
    background-color: #efefef;
    display: flex;
    flex-direction: column;
    font-size: 16px;
    margin: 0px;
    padding: 0px;
    font-family: Arial, Helvetica, sans-serif;
}

.section {

    display: flex;
    flex-direction: column;
    align-items: center;
}

button {
    min-width: 20px;
    width: auto;
    margin: 20px;
    font-size: 1.3em;
    padding: 10px 15px;}
input {
    font-size: 1.3em;
    min-width: 100px;
    max-width: 700px;
}

#qr-container {
    background-color: white;
    width: 220px;
    height: 220px;
    padding: 10px;
    border-radius: 10px;
}

svg {
    height: 100%;
    width: 100%;
}