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

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

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# navigator.yAxis.labels.overflow

How to handle overflowing labels on horizontal axis. If set to `"allow"`, it will not be aligned at all. By default it `"justify"` labels inside the chart area. If there is room to move it, it will be aligned to the edge, else it will be removed.