div.textblock {
    max-width: 50em;
}

div.fragment {
    overflow-x: auto;
    padding: 0.5em;
}

div.line {
    width: max-content;
    line-height: 1.2;
}

code {
    background-color: #eee;
    padding: 0px 3px;
}

img {
    max-width: 100%;
}