로그인된 사용자에게 버튼(SVG 아이콘)을 숨기는 방법?

[omarfilip]

아, 죄송합니다 - 반대 조건을 원하셨군요. 그래서: not(.anon)

How to display a banner for visitors only?

You can make use of the anon class added to the <body> tag. More on this here: The selector in your case would be inverted like so: body:not(.anon) { #banner { display: none; } } Which effectively hides the banner unless the user is logged out.