Attach a styled hover readout to every .fc-hit target inside root.
.fc-hit
root
Element containing one or more static-SVG charts.
Optional
CSS selector for hit-targets inside root. Default .fc-hit.
A disposer that removes the listeners + box and restores the lifted <title> nodes.
<title>
Attach a styled hover readout to every
.fc-hittarget insideroot.