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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.