Styles jumped !

Hello,

I made an update of the plugin and wordpress today and since the styles of the 3 forms formidable forms that I have on my site we jumped. I have tried many things but nothing changes. I made the styles in css, maybe the class names have changed … I also tried to modify the styles of the plugin by modifying the stylesheet used, but the changes are not displayed on the site. Thank you for your help (even by emptying the cache).

cordially