/* Line judgements hidden by default, shown if relevant */
.lj {
    display: none;
}
.lj.show {
    display: block;
}

.alternative {
    display: none;
}
.alternative.show {
    display: block;
}

/* don't show lines at all if none are relevant */
#lines:not(:has(.lj.show)) {
    display: none;
}