One of the major goals web developers have when building web applications is performance. In general there are three areas that can be improved to achieve better overall performance:
RadControls for ASP.NET AJAX have been, are, and will continue to be Telerik's promise for easily building great ASP.NET web applications, which are both beautiful and performant. There was however a small area where the tools lacked behind - CSS minification. Until now, that is.
Starting with Q1 2012 BETA all of our CSS code, both embedded and on the CDN, ships minified. Here is a comparison of the sizes of the three largest uncompressed RadControls CSS files before and after minifying:
As you can see these are relatively small files, and the rest of RadControls' style sheets are even smaller, so on a page with lots of RadControls the difference between not minified and minified CSS will be small, yet noticable.
For instance, in our Event Scheduler demo's front page the browser downloads 198.2KB of embedded, not minified CSS.
With minification you save 32.9KB.
However, in large real-world web applications there are lot more custom style sheets. Then it is always a good idea to squeeze out those extra bytes and reduce the size of your styles (and scripts for that matter) as much as possible by minifying and compressing.
In addition you can use RadStyleSheetManager to combine external style sheets so that you can reduce all CSS requests, embedded and external, into one!