Aside Menu Possible Accordion

Good day, would you be able to tell me how to add some css to the aside menu on http://synwaste.co.za/newsite/ so that if I hover over a Main Menu Item, the child menus will drop down like a Accordion Menu and push the Main Menu Items, after the active Menu items, down and once you hover away from it it disappears again? Hope this makes sense

Sorry but this kind of changes are far beyond our support and without custom template changes it will be not possible. Please note that when the menu is used also for mobile devices hover elements are not the best solution.