Delete parts of my website

So I am trying to get rid of the top right part of my website and make it completely blank

I used the plug in pc custom css and filled in the following codes within the plugin.

They disappeared when I am logged in but when I log out they are there again?

Please help me!

https://quityour9to5.mcagoldnetwork.com/

#site-title { display:none; }

.screen-reader-text { display:none; }

.entry-date { display:none; }

#search-results { display:none; }

.page_item { display:none; }

#searchsubmit { display:none; }

#site-description { display:none; }

#s { display:none; }