Add dataURI styleshhet

dataUriForStylesheet.js

var toDataURI = function(datatype, data) {
  return "data:" + datatype +";base64," + window.btoa(data);
};

var renderStyleSheet = function() {
  var link = document.createElement("link");
  link.rel = "stylesheet";
  link.href = toDataUri("text/css", "body { background-color: red;}" );
  document.head.appendChild(link);
};