Aligning page elements with CSS

Hi!

I am trying to align a .js slider element with the post entry container on my site. Here’s a screenshot showing the elements I’d like to align:
https://www.flickr.com/gp/83865298@N05/PVC6c1

If anyone could provide any help in regards to the proper css changes, I would greatly appreciate it : )

Thanks and Best Regards,
Bryan