Steps to reproduce:

1. Log in to backoffice.
2. Go to Commerce / Orders.
3. Choose an option in 'Status' dropdown.
4. Click on 'Apply' filters button.
5. Verify button styling.

Actual result:

See attached screenshot.

Apply filters button is not properly styled.

Expected result:

Properly styled button.

Note:
This problem occurs in many places in the system e.g:
- Payments
- Companies in Corporate account