AngularJS CSS lazy loading - first version. Ream more here: http://www.royts.com/2013/06/css-lazy-loading-in-angularjs-app.html

gistfile1.js

angular.module('cssLoadingService', []).factory("CssLoadingService", function () {
  return {
    loadCss: function (url) {
      if (document.createStyleSheet) {
        document.createStyleSheet(url); //IE
      } else {
        var link = document.createElement("link");
        link.type = "text/css";
        link.rel = "stylesheet";
        link.href = url;
        document.getElementsByTagName("head")[0].appendChild(link);
      }
    }
  };
});


function SomeController(CssLoadingService) {
  CssLoadingService.loadCss("style.css");
}