Hi there @casio151,
I hope you’re well today! 🙂
WordPress normally provides classes for those but it could be that another plugin is conflicting there.
To check though, does the widget you’re referring to have a title?
To help find if there’s a conflict though, perhaps you could try deactivating plugins and switching to a default theme like Twenty Fourteen.
The following troubleshooting chart can help:
http://premium.wpmudev.org/wp-content/uploads/2013/12/Support-Process-Support-Process-4-526×1024.jpeg
Could you let us know how that works for you?
Cheers,
David
Great thanks. It helped me a lot 😀