I have used some custom code in CSS to get a custom background image in the header which is perfect on desktop.
The issue is when the mobile menu is activated the image isn’t responsive and the thin light blue line doesn’t shift to the bottom of the menu. (hope that makes sense)
The site is http://www.wma.com.au
Are you able to advise if its possible for that imaage to shift to the bottom of the mobile menu or if there is a better way to have the two colour header.