Widget _registerButtonContainer() {
    return Padding(
      padding: EdgeInsets.fromLTRB(0.0, 0.0, 100.0, 0.0),
      child: Material(  //Wrap with Material
        shape: RoundedRectangleBorder(borderRadius:BorderRadius.circular(22.0) ),
        elevation: 18.0,
        color: Colors.deepOrange,
        clipBehavior: Clip.antiAlias, // Add This
        child: new MaterialButton(
          minWidth: 200.0,
          height: 50,
          color: Colors.deepOrange,
          child: new Text(Texts.REGISTER,
              style: new TextStyle(fontWeight: FontWeight.bold, fontSize: 18.0, color: Colors.white)),
          onPressed: _registerButtonAction,
        ),
      ),
    );
  }