Add black and white filter css

Black and white effect on not earned achievements and ranks

Google Maps iframe in Black and White (Example) - Coderwall 26 Aug 2019 A protip by jbernardo95 about css, google, html, iframe, filter, and maps. If you search on the web on how to to get a black and white google maps As you can see, it is quite simple, all you need to do is add a css filter. grayscale() | CSS | WebReference 24 дек 2018 DOCTYPE html> grayscale()