I almost submitted this very topic last night, but was too tired to explain it
There's got to be some way to separate the Stream CSS from the site's CSS...
I can't go and redo all the site CSS... for one thing, it's already done, finished, how it needs to be – it's the Stream that needs to fit in.
I have the same thing as Paisley going on. All my <h> tags have changed fonts/sizes, <p> tags have changed fonts/sizes. Only on the page the Stream is embedded in.
The Iframe isn't good because it puts a scroll bar on longer posts – and scrolls aren't so good on mobile screens.
Besides needing a specified height which doesn't work for my responsive site.
Maybe there's some way to separate the CSS, so it could be linked to as an external style sheet and give an ID to the JS snippet?