Custom CSS is not working after recent Nintex forms update SP2016

[cmikhaiel_e]

We have just updated today our environment SP 2016 from version 4.3.1.1 to the newest 4.4.1.0. The CSS formatting is no longer working.

Badically, the form includes Choice buttons that are rendered as radio buttons in order to toggle the visibility of the Nintex form . Those radio buttons could not apply custom CSS (min-width and min-height properties). These styles cannot be applied even through the browser developer tools. This is an issue only on the farm that has the newest Nintex release.  CSS styles work perfectly on the farm with the previous version of Nintex.

Nintex versions

Old: 4.3.1.1

New:  4.4.1.0

We have tried de-activate/re-activate the Nintex forms feature on the webapp level in CA, but that didn't fix it. any thoughts? 

[SimonMuntz]

Hi,
4.4.1.0 is not the newest build, it is 4.5.1.2.
Looks like there was a fix in 4.5.0.1 in regards to the choice buttons not rendering correctly.
https://community.nintex.com/t5/Release-Notes/Nintex-Forms-2016-4-5-0-1-Release-Notes/ta-p/87904

[cmikhaiel_e · Accepted solution]

Issue was resolved. Adding a line to the CSS got it to work. 

CSS ... 

Clear:both;