in RGBa what does the a mean. in the transparent section, the floating point number for a was 0.3 why? someone should explain to me please. I thought the RGB should have been set to (0,0,0,0).

Answer 1

RGBA color values are an extension of RGB color values with an alpha channel - which specifies the opacity of the object. An RGBA color value is specified with: rgba(red, green, blue, alpha). The alpha parameter is a number between 0.0 (fully transparent) and 1.0 (fully opaque).

Answer 2

thanks Awele

Answer 3

Alpha