collections: embedded content is not centered

[urcades]

commit: 7a41664

Here's an image of the post in the index:

Here's the post's appearance after clicking into it:

[urcades]

I'm just now realizing that this may be due to my incredibly slow network at the moment, tweet embeds work elsewhere, but are still strangely positioned within their containing frame:

[tylershuster]

How long did you wait? Sometimes it takes a while for all the JS and style to come in.

[urcades]

The 'broken' links never appeared to resolve, after waiting on the pages for what seemed like ages — this might be more reliable to test when I'm on a proper wifi network.