in antora-ui/src/js/01-nav.js [26:34]
find(menuPanel, '.nav-item-toggle').forEach(function (btn) {
var li = btn.parentElement
btn.addEventListener('click', toggleActive.bind(li))
var navItemSpan = findNextElement(btn, '.nav-text')
if (navItemSpan) {
navItemSpan.style.cursor = 'pointer'
navItemSpan.addEventListener('click', toggleActive.bind(li))
}
})