Control.setCssClass

Sets one or more CSS classes to be applied to the control. Exactly how these classes are applied varies depending on the control. See the documentation for each control for further details. Multiple classes are specified by using a space between the class names, as per the HTML class parameter.

These classes are configured in the designer using the Advanced Properties button within the control's Styling Assistant.

Further documentation.

Parameters

java.lang.String  cssClass,