Remove header image on posts page

I want to remove my header image everywhere except the homepage
I’m using the CSS below and it works.
However, I want to completely remove the code. The CSS is just a way to hide it.
I hope someone could help.

.single-post .site-branding {
  display: none;
}

.page .site-branding {
  display: none;
}

• This topic was modified 3 years, 7 months ago by finebyme.