Megamenu dropdown disappears

Hello !

I have added a dropdown with module "search". It works like this: In the menu there is field named Search, when u hover over it then module with search pops down as normal. Everything is fine, but when I click inside the text field to write what I want to search, after 2 sec the dropdown menu woth search module disappears.

I have no idea why.

Thanks for any response !

Karlos