pre introduce.marked {
    display: block;
    overflow-x: auto;
    padding: 1em
}

introduce.marked {
    padding: 3px 5px
}

.marked {
    color: #383a42;
    background: #fafafa
}

.marked * {
    margin: 0px!important;
}

.marked li {
    white-space: normal;
}