Issue: Site menus are hidden behind content editor web part.
Background: User added .swf file into content editor web part using iframe.
Code: Client had used the following code in the CEWP.
Troubleshooting: We tried with different parameters like, visibility, position, z-index but none of them working but no success.
Resolution: You have to add the wmode attribute.
If you have any queries/questions regarding the above mentioned information then please let me know.
I would be more than happy to help you as well as resolves your issues, thank you.
Applies to: SharePoint Foundation / Server 2010.