Custom styling of Google Maps Info Windows

Site URL: https://www.atuttatuscia.it/

Hi all,

I am trying to customise the look of the Info Windows on my map
https://www.atuttatuscia.it/
pw: Access

This is what I would like to achieve:

1. The entire content to display within the info window, so there is no scrollbar.
2. On mobile, adjust the gap between the photo and the description (too big now, see screenshot)
3. If possible, I would like to colour-code the Categories (which appear just under the title) so that they match the buttons/icons used to filter the categories

Is anyone able to help me please?

Many thanks!