rgba
Summary
Browser-independent alpha-channel management.
Syntax
keyman.util.rgba(s, r, g, b, a);
Parameters
s
- Type:
Element
- Element style object
r
- Type:
number
- Value for red (0-255)
g
- Type:
number
- Value for green (0-255)
b
- Type:
number
- Value for blue (0-255)
a
- Type:
number
- Value for alpha/opacity (0-1.0)
Return Value
string
- Background color CSS value.
Description
This function returns the required string value for setting background transparency, and applies an appropriate a filter to the element for IE versions before IE9.