Popup Guide

 <span class="ajax-popup" data-blockid="shipping-policy-popup" data-bind="mageInit: {'kadroPopup':{'type': 'ajax', 'baseUrl': '/kadro/rest/getcmspopup/blockId/'}}"> 
    Shipping Policy 
 </span>


class: Always "ajax-popup"
data-blockid: The name of the block that holds the content you want to display in your popup
data-bind: Always "mageInit: {'kadroPopup':{'type': 'ajax', 'baseUrl': '/kadro/rest/getcmspopup/blockId/'}}"