nesting scripts

Question

Hello -

I am trying to create an extension - it will open in the browser like a webpage and after the directional tab has been selected the page referencing the tab opens inside an iframe. All of that is working good.

However, a couple of the tabs are to open complicated webpages inside their iframes. The space is not a problem however I am having difficulty using the CSS and JS. - i am able to use a sc/script.js file for the extension, and it covers the webpage, however after a couple of layers deep it quits working

[ nesting iframes ]