Disable/Remove/Hide “Pages” menu or “Page Library” or “View all pages”

Question

I am using SharePoint Online. Does anyone know of ways to disable/remove/hide the "View all Pages" from the ribbon menu. I am open to solutions to remove "Page Library" section of the ribbon or even the "Page" menu if those solutions are avalable.

Answer 1

You can hide Page tab using CSS:

.ms-cui-tts > li:last-child {
  display: none !important;
}

Answer 2

You can add Script editor webpart to the page by inserting code to hide the whole Page ribbon:

#Ribbon\.WikiPageTab {
  display: none !important;
}