Stretched Logo

I use enfold on our Site the logo is stretching for some reason, it is the recommended size. I have tried the .css recommended in other threads nothing is working, can someone help. We have used it on other sites and had no problems. I don’t want to spend any more time modifying the site to this theme if I can’t fix it! I am wondering if it has to do with the old theme, but can’t see why that would matter. Thank you!