# Welcome to the Highcharts Gantt JS (gantt) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

Feel free to search this API through the search bar or the navigation tree in the sidebar.

# xAxis.crosshair.width

The pixel width of the crosshair. Defaults to 1 for numeric or datetime axes, and for one category width for category axes.