How to highlight each floor (of a house) in an svg image?

Question

css

1. How to implement the highlighting of each floor on the svg picture like on this site?
kasp-gavan.ru
2. Is it all done manually or automatically?

Answer 1

Draw the shape for the floor in svg, copy for each floor, fill with the desired color, set the transparency to zero, and simply with :hover return the transparency you need.