Problem styling CF7 in Enfold

Hello there,

I am new to the Enfold theme, and also to the coding of forms.
I made a CF7 form and styled it with the post I found on this forum:
https://kriesi.at/support/topic/styling-contact-form-7-as-enfold-contact-form/

Now everything works fine and the layout is perfect in preview.
2 colums side by side…..

But when I publish the form, the layout is lost.
I also have put some styling code in the extra CSS for items in CF7.
Can someone point me in the right direction?