Currently with the larger menu dropdown the last item in the list may sometimes be cut-off in the browser.
One fix you can try is to adjust the last element and move the sub menu over a bit e.g. something like...
site-navigation ul > li:last-of-type .sub-menu {
transform: translate(-50%,0);
}
Also note that you shouldn't use id's as selectors, the reason I did is because that's what's in your css right now, please try to refactor this to work without relying on using id selectors.
Currently with the larger menu dropdown the last item in the list may sometimes be cut-off in the browser.
One fix you can try is to adjust the last element and move the sub menu over a bit e.g. something like...
site-navigation ul > li:last-of-type .sub-menu {
Also note that you shouldn't use id's as selectors, the reason I did is because that's what's in your css right now, please try to refactor this to work without relying on using id selectors.