I checked your site in ipad but i don’t get the horizontal scrolling. However, you can decrease it’s width by adding this code into your custom css box:
The issue is not with the opened drop-down meny but with the sticky, white, header bar that is too wide and causes horizontal scroll both on iPad and iPhone 5.
You can notice it even on desktop: after resizing browser window you’ll notice the sticky header falls under the vertical scrollbar. While this won’t cause horizontal scroll in desktop browsers, it will on said Apple mobile devices.
For the menu dropping down when header gets smaller, you can fix it by making smaller padding between menu items. Please go to General Options >Header Options > Menu Options > Menu Items padding.
I already gave you a code for the logo in mobile(in your other topic). It should fix the horizontal scrolling as well. Please try it up and let us know.
