Empty template reference

{
  "tagName": "mj-global-style",
  "attributes": {
    "h1:color": "#000",
    "h1:font-family": "Helvetica, sans-serif",
    "h2:color": "#000",
    "h2:font-family": "Ubuntu, Helvetica, Arial, sans-serif",
    "h3:color": "#000",
    "h3:font-family": "Ubuntu, Helvetica, Arial, sans-serif",
    ":color": "#000",
    ":font-family": "Ubuntu, Helvetica, Arial, sans-serif",
    ":line-height": "1.5",
    "a:color": "#24bfbc",
    "button:background-color": "#e85034",
    "containerWidth": 600,
    "fonts": "Helvetica,sans-serif,Ubuntu,Arial",
    "mj-text": {
      "line-height": 1.5,
      "font-size": 15,
      "font-family": "Ubuntu, sans-serif"
    },
    "mj-button": { "font-size": "13px" }
  },
  "children": [
    {
      "tagName": "mj-body",
      "attributes": { "background-color": "#FFFFFF", "containerWidth": 600 },
      "children": [
        {
          "tagName": "mj-section",
          "attributes": {
            "full-width": "600px",
            "padding": "10px 0px 10px 0px"
          },
          "children": [
            {
              "tagName": "mj-column",
              "attributes": { "width": "100%", "vertical-align": "top" },
              "children": [],
              "uid": "HJQ8ytZzW"
            }
          ],
          "layout": 1,
          "backgroundColor": null,
          "backgroundImage": null,
          "paddingTop": 0,
          "paddingBottom": 0,
          "paddingLeft": 0,
          "paddingRight": 0,
          "uid": "Byggju-zb"
        }
      ]
    }
  ],
  "style": {
    "h1": { "font-family": "Ubuntu, sans-serif", "font-size": "22px" },
    "a": { "color": "#0000EE" },
    "h2": {
      "font-family": "Ubuntu, Helvetica, Arial",
      "font-size": "17px"
    },
    "h3": {
      "font-family": "Ubuntu, Helvetica, Arial",
      "font-size": "13px"
    },
    "p": { "font-family": "Ubuntu, sans-serif", "font-size": "11px" },
    "ul": { "font-size": "11px", "font-family": "Ubuntu, sans-serif" },
    "li": { "font-size": "11px", "font-family": "Ubuntu, sans-serif" },
    "ol": { "font-size": "11px", "font-family": "Ubuntu, sans-serif" }
  },
  "fonts": ["Ubuntu, sans-serif", "Ubuntu, Helvetica, Arial"]
}