get_css_name
Description:
[ CCode ( cname = "gtk_widget_class_get_css_name" ) ]
[ Version ( since = "3.20" ) ]
public class unowned string get_css_name ()
  [ Version ( since = "3.20" ) ]
public class unowned string get_css_name ()
Gets the name used by this class for matching in CSS code.
See set_css_name for details.
Parameters:
| this | class to set the name on | 
Returns:
| the CSS name of the given class |