I need to change the background color of a block made of 6 rows. I have created a custom class, I have assigned it to the block and changed the background color in the custom class.
If i switch to view mode, it works, the color is changed regularly.
If i preview in browser or if I export the site, the color is NOT changed, remains the standard white.
On the contrary, if i change the background color on the block panel on the right hand side, the change affects all blocks above.
Any idea to solve this inconsistency?