I tired to reproduce the described behavior, but to no avail. I have attached my test project, which is based on the provided code snippet. Please compare it with your actual project and verify if there are differences in the setup. You can find also a screen capture
that displays the behavior of the RadButtons on my side.
I noticed that in the code sample you are using custom CSS classes that are not included. Please check if any of them is interfering with the default appearance of the RadButton controls.
Note that at the current state of affairs I am mostly guessing as to what your setup is and I am unable to reproduce the issue at hand. If you are still experiencing difficulties please try modifying the attached sample or prepare a small, runnable project
that displays your issue so that we can examine it locally and provide a more to the point answer. I would suggest opening a support ticket
in order to send the project.
the Telerik team
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