alchymyth on "Highlight Current Page in menu not working on "posts" page"

@Linosa

your code seems to assign the css class .current-page-item and .current-subpage-item resp.

do you have corresponding styles in style.css?

for instance:

.current-page-item a { ... }
.current-subpage-item a { ... }

so what is not working?

a link to your site might help to illustrate your problem.