Can you make a transparent background so it.....

Question

Can you make background-color transparent so it matches the color when you put it on a different color screen?

Like...some of the pictures you see on google - if you copy them and paste them on a black screen, the transparent part displays as black.
If you put it on a purple screen , the transparent part displays as purple.(...)

Would background-color:transparent work? or...

Answer 1

Html and style sheets dont really work like that. You would have to hard code a plugin with your website to do something like that. Mabye you are looking for the opacity value which would be color: r,g,b,opacity. (Not exactly that but I know it is something like that)