Utilize ASP.NET theme specific to browser and browser version

[diulmisse]

My team is developing an ASP.NET web application, and we are attempting to maintain a consistent look and feel across browser type and version for a couple of the major browsers(IE, Chrome, Firefox). We would also like to allow themeing if possible , so that users can have a choice of color, font size, and so on.However, I am having a serious issue with Acheiving compatibility with IE 8 and 9 due to some CSS3 rules currently in place. In particular, the shading gradient's used in this \[code\]div\[/code\] are causing trouble, as they are not supported in IE 8 or 9: \[code\]#logos{ width:1024px; height:100px; border-radius:15px; color: -moz-linear-gradient(bottom, #297381, #FFFFFF); color: -ms-linear-gradient(bottom, #297381, #FFFFFF); color: -webkit-linear-gradient(bottom, #297381,#FFFFFF); background:-moz-linear-gradient(bottom, #297381,#FFFFFF); background:-ms-linear-gradient(bottom, #297381,#FFFFFF); background:-webkit-linear-gradient(bottom, #297381,#FFFFFF);}\[/code\]I believe(correct me if I am wrong) I can achieve the gradient in IE9 by adding these rules:\[code\]-ms-filter: "progidXImageTransform.Microsoft.gradient(startColorStr='#297381', EndColorStr='#FFFFFF')";filter: progidXImageTransform.Microsoft.gradient(startColorStr=