body {
    font-family: sans-serif;
    margin: 0;
    padding: 0 0 20px 0;
    text-align: center;
}

.content {
    display: flex;
    flex-direction: column;
}

a.link, input[type=submit] {
    width: 100%;
    padding-top: 10px;
    padding-bottom: 10px;
    color: inherit;
}

a.link {
    height: 20px;
    text-decoration: none;
}

a.link.back {
    font-weight: bold;
}

input[type=submit] {
    font-size: 100%;
    border: none;
    background-color: inherit;
}

input[type=submit]:hover {
    cursor: pointer;
}


/* card */

.card {
    display: flex;
    flex-direction: column;
}

.card h1 {
    font-size: 110%;
    background-color: #005cbf;
    color: white;
    margin: 0;
    padding: 10px;
}

.success.message.card h1 {
    background-color: green;
}

.error.message.card h1 {
    background-color: red;
}

.card > * {
    margin-top: 10px;
}

/* file */

.card.file a.preview {
    margin-top: 0;
}

.card.file a.preview img {
    max-width: 100%;
    max-height: 90vh;
}

#qrcode img {
    margin: auto;
    max-width: 100%;
}