CSS3/Color/transparent

• Color
  • <color> Values
    • Basic color keywords
    • RGB
    • RGBA
    • transparent
    • HSL
    • HSLA
    • Extended color keywords
    • currentColor

transparent

Fully transparent. This keyword can be considered a shorthand for transparent black, rgba(0,0,0,0), which is its computed value.

CSS Reference

The CSS Color Module Level 3 specification defines the transparent color keyword in 4.2.3. ‘transparent’ color keyword.