If you want to edit one element (and not all elements associated with this style at once), then simply add another style (and name it according to the block theme). Example:
Setting: Section - Container (white)
Settings: Section - Container (f3f3f3)
Settings: Section - Container (fafafa)
h1 text
h1 text (40 size)
H2 Text
Heading
Text Paragraph (150% height)
Text Paragraph (130% height)
Button white-orangeButton Blue-OrangeButton for the block with contactsButton for the block with contactsPhotos and Cards
Radius - 4 pixels