# Welcome to the Highcharts Maps JS (highmaps) 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.

# colorAxis.className

A class name that opens for styling the axis by CSS, especially in Highcharts styled mode. The class name is applied to group elements for the grid, axis elements and labels.