Parameters of BaseSelector

Content

Hello, 

I want to change the css parameters of popup forms, when clicked on 'Share' in comment widget so pop up form with link and social images.

I want align the popup to center.  In code i need to modify the 'this.baseselector', how can do it?

Code Snippet

             reatePanel: function() {
        return new this.Y.Panel({
            headerContent:  null,
            bodyContent:    this._renderShareBox(),
            constrain:      true,
            srcNode:        this.Y.Node.create('<div class="rn_ShareBox2">'),