Transparent container

Hi there.

I am trying to make my container body for a listing or page transparent so I can see the background a bit and have ranges of opacity.

I have researched the following code but am not sure if this is the right code or not. Does anyone know if this or some other code would work?

Thanks a bunch.

.alpha60 {
02.
/* Fallback for web browsers that doesn’t support RGBa */
03.
background: rgb(0, 0, 0);
04.
/* RGBa with 0.6 opacity */
05.
background: rgba(0, 0, 0, 0.6);
06.
/* For IE 5.5 – 7*/
07.
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000);
08.
/* For IE 8*/
09.
-ms-filter: “progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000)”;