CSS Code:
#btn{
background: url(transparent.png) no-repeat;
filter: alpha(opacity=0);
-moz-opacity: 0;
-khtml-opacity: 0;
opacity: 0;
}
Use PNG image for modern Browsers ( mozilla , Opera, Chrome etc ) :
background:url(../images/banner01.png) no-repeat right 13px;
Add this For IE ( Use another CSS Or use IE hack )
/* ie fix */
background-image:none;
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src="images/banner01.png",
sizingMethod="crop");