[Theme: Customizr] How do i hide the little pencil icon on the "posts" page?

I am trying to hide the little pencil icon on my post pages.

What I am trying to achieve is to use the “post page” as a welcome page + short description on my website https://www.welbeckelectricity.com. (I wont mind if there are other ways I can achieve this, cuz I believe what I have at https://www.welbeckelectricity.com looks tacky).

I already tried the code

/* Remove Post/Page Icon */
.page #main-wrapper h1.format-icon:before {
content: none;
}

given by @rdellconsulting on this page https://www.themesandco.com/snippet/change-postpage-icon-title/
unfortunately it didn’t work for me (dont know what i did wrong).

I will also like to move the welcome text + short description upward just below the main slider and above the featured page circles so it looks more professional.