.content {
    max-width: 768px;
    margin-left: auto;
    margin-right: auto;
    padding-top: 1em;
    padding-left: 1em;
    padding-right: 1em;
    background: #eee;
}
#barcode {
    width: 80%;
    max-width: 400px;
    margin-top: 1em;
    margin-bottom: 2em;
    margin-left: auto;
    margin-right: auto;
    display: block;
}
.more-space {
    margin-top: 0.5em;
    margin-bottom: 0.5em;
}
h1,h4 {
    letter-spacing: 0;
    text-align: center;
    width: 100%;
}

.aligned-img {
    vertical-align: middle;
    margin-right: 0.3em;
}