It appears the menu width is automatic to the point where you set the Menu Width option “This is the width the menu takes up across the page once expanded.” as stated in your plugin.
If I set the the menu width to 75% (default), it looks fine on the mobile version but it is too wide and takes up too much space on the desktop version when opened …see screencap of my sandbox site here: http://sandbox.tableaux.com/files/screencap-1.jpg
If I change the menu width setting to 25%, it looks good on the desktop version, but the mobile version is too small too small and if there are any child pages under a parent, the title of the parent gets cut off where the little down arrow is.
I purchased the pro version and I see the option for custom CSS. I can leave the main width setting at 75%, but what would the css code be so the desktop version gets set to 25%?
Thanks for the quick response! I turned off the admin notices 😉