Change height of header backgrounds - Mobile

Site URL: https://www.maesmusicstudios.com.au

Hi,

My friend is building her own website with my help. She doesn't like how the header background images look on mobile ie not resizing to show whole image.

I was able to find the below code to target the gallery page on the front but am having trouble with the regular background images

@media screen and (max-width:767px) {
  .gallery-fullscreen-slideshow[data-width="full-bleed"] {
    height: 30vh !important;
  }
}

password to the site is MaesMusic2021!

Any help is greatly appreciated thanks

EDIT

I found that this code works

@media screen and (max-width:768px) {
[data-section-id="6059eaf4eca85364b41ca42f"] {
    min-height: unset !important;
    height: 50vh;
}
}

but I was wondering if anyone know how to target all of the images rather than getting the id for each one?

Which page do you have problem with image?