transparency effects

Hey Gianluca,
Thank you for your patience, but it looks like you have already sorted out how to make the masonry overlay transparent instead of white.
As for your second question on your example page when you scroll down the top section is scaled down with javascript using transform: scale(); I can’t see the javascript used. I recommend using a plugin or a library like https://greensock.com/scrolltrigger for example: https://codepen.io/snorkltv/pen/oNBGzOE
or something like this: https://stackoverflow.com/questions/64464798/transform-scale-on-scroll
but you will need to tinker with it.

Best regards,
Mike

Hi,
Try this CSS in your Enfold Theme Options ▸ General Styling ▸ Quick CSS field:

 .av-masonry-item-with-image .main_color .site-background {
 	background-color: transparent;
 }

After applying the css, please clear your browser cache and check.
But you might find the gray text hard to see, so if you want to also change the text color try this css:

 .av-masonry-item-with-image .main_color .site-background {
 	background-color: transparent;
 	color: #fff;
 }
 .av-masonry-item-with-image .main_color h3.av-masonry-entry-title {
 	color: #fff;
 } 

Best regards,
Mike