Fix menu item hover in light theme (#3215)
Fix menu item hover in light theme (#3215)

The selector in body.light-theme. layout-container doens't work, because the class light-theme is apply with layout-container in same element
Example ![Example](https://i.imgur.com/W21titb.jpg)
Brocco/RxJS,martinsik/rxjs,IgorMinar/RxJS,jayphelps/rxjs,ReactiveX/RxJS,Brocco/RxJS,IgorMinar/RxJS,ReactiveX/RxJS,ReactiveX/RxJS,trxcllnt/RxJS,kwonoj/RxJS,Brocco/RxJS,jayphelps/rxjs,jayphelps/rxjs,ReactiveX/RxJS,ReactiveX/rxjs,kwonoj/RxJS,martinsik/rxjs,martinsik/rxjs,benlesh/RxJS,kwonoj/RxJS,trxcllnt/RxJS,ReactiveX/rxjs,benlesh/RxJS,jayphelps/rxjs,ReactiveX/rxjs,trxcllnt/RxJS,trxcllnt/RxJS,Brocco/RxJS,kwonoj/RxJS,jayphelps/rxjs,benlesh/RxJS,martinsik/rxjs,ReactiveX/rxjs,benlesh/RxJS