Client area page login fields

I just installed the plugin, looks promising. One issue: the client area login page style looks nice when logged in, but once user logs out the fields “jump” over the slider and become wide as the screen, making it look bad. I just want a little box, not sure how to add custom css because the page might then change too when user is logged in.

Any way to tell the page to display fields in the page body? Im using rapid composer on the fitness theme. https://fitness-club.bold-themes.com/main-demo/
Is there any editable areas in this plugin where that can be controlled? I want to use it on several sites, need to make it work.