[bug] SortableJS doesn't support classNames or cx?

[arjanvillon]

Describe the bug I'm working on sortable cards with the user of this package but when it renders, my classes on the html tags are gone.

To Reproduce Steps to reproduce the behavior:

1. Install classNames along with sortableJS.
2. Create a list to sort and add two or more classnames with the use of the package.
3. Apply some styles to the classes.
4. View the inspector and it will not show the classes.

Expected behavior The designs should be the same as what you've placed on the styling.

Information Versions - Look in your package.json for this information: react-sortable = ^6.0.0 react = ^16.13.0