Keyword

RGB

RGB with Hexadecimal

RGB 100%,40%,10%

RGBA 100%,40%,10%,.5

HSL 370,100%,50%

HSLA 370,100%,50%,.5

RGBA Fade to transparent by step .1(using span with a class here or inline)

Gone.... Going.... Going.... Going.... Going.... Going.... Going.... Going.... Going.... Going.... Going.... Going.... Going.... Going.... Going.... Going....

HSL Fade white to black by step 10%(using span with a class here or inline)

White Going.... White Going.... White Going.... White Going.... White Going.... White Going.... White Going.... White Going.... White Going.... White Gone....