Why Isn\'t My CSS Background Opacity Working in IE8?

CSS Background Opacity Not Working in IE 8

This CSS for background opacity of a

is not working in IE 8:

background: rgba(255, 255, 255, 0.3);

It works fine in Firefox but not in IE 8. How can we make it work?

Solution

To simulate RGBA and HSLA background in IE, we can use a gradient filter with the same start and end color (the alpha channel is the first pair in the value of HEX):

background: rgba(255, 255, 255, 0.3); /* browsers */
filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#4cffffff', endColorstr='#4cffffff'); /* IE */

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