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.