Right menu with oposite rollover

I'm using MaxiMenu 8.1.9 for menu on right side of page with opposite rollover (to the left). I make displacement 300px left so submenus don't cover mainmenu. This works perfect until page width stay unchanged (screen1). When I change my web browser width then submenus go far away in left (on second screen) Is there any possibility to catch submenus position with menu border?

Hi
try a with of 100%
have you also used the option "inverse direction" in the effect options of the module ?
CEd

Yes. I used opposite direction (BETA) with first parameter under: 300px. When I put less than 300px on full width then submenus cover my menu and this looks bad. Thats why I move submenus with this effect option to the left.
100% width of what i should try?

yes try with 100% instead of 300px

When I put 100% instead 300px then submenus start to open from left to right no matter that there is opposite direction choosed.

give me your url to check this