CSS `display: none` can prevent certain types ... Though as gnosis pointed out, the best solution might be to dynamically load it using JS if you are concerned about resources on a mobile device.

jsFiddle is the perfect solution; it provides a custom environment (based on user selections) to test (or fiddle with) your JavaScript, HTML, and CSS code ... is as simple as loading the site ...

and then does the work of finding where lazy loading can best be employed ... surrounded by pure HTML/CSS markup. By carving up the app in this manner, you can ship all of the HTML straight ...