Centering logo

Hi,

I have been using this plugin forever and love it! However, on my current project, I cannot get the logo to center up. It will only align with the left side of the login form. This has never happened before. Can you please provide some guidance here? It is a mystery to me….

http://pvatestsite.com/floors/wp-login

https://wordpress.org/plugins/erident-custom-login-and-dashboard/