Pete Houston

@kathryn: thanks, those are also what I’m thinking of since this is still the issue of WordPress and user-experience.
I’m considering of implementing this kind of menu: https://0.s3.envato.com/files/16920118/03_megadropdown.png

The dropdown and listing menu like this, really fit the Twenty-Fourteen theme.

@kathryn: I updated it, you might want to check it out. https://pcode.petehouston.com/
The menu item on the top primary navigation: Tip ‘n Tricks

@infos: ah, right…I miss that property. Thanks for helping.

I’m coming round to the conclusion that keeping the right-hand sidebar on (non-full-width) pages

do you mean you want to remove the right sidebar to expand more space for post/page content?

it’s already discussed here, https://www.ads-software.com/support/topic/display-only-excerpts-on-home-pagecategory-pagessearch-results

Is it what you expect?

.hentry {
margin: 0 auto 48px;
max-width: 100%;
}

It’s used in my page, the content will expand to more space if there are more to expand, https://pcode.petehouston.com/

You can add this to your functions.php template

/* remove parent sidebars */
function aquatify_remove_fourteen_sidebars() {
  unregister_sidebar( 'sidebar-1' ); // primary on left
  unregister_sidebar( 'sidebar-2' ); // secondary on right
}
add_action( 'widgets_init', 'aquatify_remove_fourteen_sidebars', 11 );

You can see my page, which removes the primary sidebar, https://pcode.petehouston.com/