title display issue post / post slider

Hi there,

I was wondering how to fix the following issue.

I’ve used:
.entry-content-header {display: none !important;}

to hide the post title in the post, to show it only in the title bar.
But now I want to use the post slider element, and there’s also the title hidden.
How can I make the title hide on all post/pages, but let it show on the post slider?
See private content for the urls.

Best regards, Annelies