// calling map on the json variable and using a custom callback function.
json.map(function(val) {

  // Adding each object keys
  var keys = Object.keys(val);
  // Generating new html
  html += "<div class = 'cat'>";
  // Adding the custom html to each key
  keys.map(function(key) {

    html += "<b>" + key + "</b>: " + val[key] + "<br>";

  });

  html += "</div><br>";

});