Need help to invert logo on portfolio subpage

Hey guys,

I have a problem with making my logo inverted on specific pages on my portfolio site. My logo is black but on some of my subpages on the portfolio I want it to invert because of a dark background. I've tried to use the code below and it works fine but I only need it to be on the marked subpages which you can see on the attached image.

Code:

<style>
  header#header img {
    -webkit-filter: invert(100%);
   filter: invert(1);
}
</style>

Thank you!

- RTB

Omg, so simpel! 😄 Thank you so much!