How to get rid of ugly asp:Menu flickering?

Question

I\'m using the asp:Menu control on an ASP.NET 4.0 Webforms page with table-free rendering mode:

Answer 1

#menu ul li ul 
{ 
    display: none; 
} 

 and
#menu ul li  
{ 
    position: relative;  
    float: left; 
    list-style: none; 
} 

This worked for me also. I was not having an issue until I placed a reCaptcha on the form. My menu was being produced within a Master Page also. Thank you very much!