I have problems with the Gantt Highcharts tooltip when scrolling.
As you can see in the image, the tooltip is behind the Gantt, I tried this code fragment but it doesn't work:
// JS
tooltip: {
style: {
zIndex: 9999
}
},
This is my full code: https://jsfiddle.net/carmaro/ygvza0Lm/4/
The simplest solution is to enable the outside
option for a tooltip. For example:
tooltip: {
outside: true,
...
}
Live demo: https://jsfiddle.net/BlackLabel/r5jf0v96/
API Reference: https://api.highcharts.com/highcharts/tooltip.outside