Recently I wrote an article on CSS3: Rounded CSS Corners, which is a great solution for creating rounded corners. However, Internet Explorer doesn’t yet support it, but there is a solution which this article explains.
The following two links demonstrate a working version and also a zip file so you can download everything you need to get this working.
The HTML is pretty straight forward and uses the code from another article – HTML5 tutorial: Getting Started.
Next you’ll simply need to tell the browser which corners you want to be rounded.
$("#main-navigation a").corner("top 5px");
And that’s all there is to it. You can create all kinds of rounded corner effects as shown on the rounded corners demo site. Up until now, I’ve always created rounded corners using this method but seeing the simplicity of this Jquery solution, I am tempted to switch for Internet Explorer at least and rely on CSS3 for Webkit and Mozilla browsers.