String className

Source 

@DomName('Element.className')
@DocsEditable()
String get className => _blink.BlinkElement.instance.className_Getter_(this);
void className=(String value)

Source 

@DomName('Element.className')
@DocsEditable()
set className(String value) =>
    _blink.BlinkElement.instance.className_Setter_(this, value);