As you should see in the images below, the css on my local host site is spaced much better at the top than it is on heroku.
Has anyone had this type of problem bef
I had this same problem and followed the instructions of a couple of different pages including Heroku's own documentation. I'm posting here to help the next guy because possibly due to changes in Rails 4, Heroku, or Github but the above directions did not work at all for me. However I did get it to work and here's how.
Yes you probably should precompile your assets using RAILS_ENV=production bundle exec rake assets:precompile
but after that go into you 'public/assets' folder and copy "all" '.css','css.gz', '.json', '.yml', '.js' files that start either with 'application' or 'manifest'. Move them to a folder outside of the application's directories. Do this just encase anything goes wrong. Verify all of those files are deleted from the apps 'public/assets/' folder. Next restart your local rails server and verify your app is still behaving as you intend it to. Then go to your Github account and go into the 'public/assets/' directory of your repository and delete all the same files that you just did locally. Then add/commit locally, then push to git, then to heroku, and walla you're done it should be working.
The rationale behind it, what I assume, is because when you push to Heroku it checks for compiled assets in your repository and because of this, even though I had precompiled locally, it was still pulling some asset configurations from previous commits. By removing these files, Heroku must compile them during the push. One thing I didn't try which may work is just switching to another branch and deleting those files and deploying that branch to Heroku, so you may want to try that first, but this is what worked for me.
One other note, renaming the files to .bak or .old Heroku still considered them as their regulars and displayed them as it was the original ones that were not displaying properly.