... is the hue; the distance from the axis is the saturation; and the distance along the axis is the lightness. The combination of those three values creates a unique color.Hue represents the ... limit of the radius to the farthest side of the box, but this time, I set the center point as the center of the left side. In WebKit, I defined the second radius value as 190px, which is the width ... its farthest (horizontal) side. In Firefox, I use the farthest-side keyword, and in WebKit, I set the value to 95px (half the width of the box).In the next example (Y), I again set the limit...