Most of the best designed websites have many elements which have rounded corners, while many websites use images for rounded corners, its best to use CSS to create rounded corners for web design. If you are looking to create rounded corners with effects for your blog or website, you can try out CSS3 Generator, which lets you create rounded elements without having to code anything. Once you have selected the options, you can create the code in seconds and it works well on Firefox, Google Chrome, Safari, and Internet Explorer etc although some elements might not work in IE versions prior to IE9.
You can select the border radius, border shadow, background gradient and also the opacity of the element using the code. The advantage of using this code is that you get code from where you can try building your own code rather than starting from scratch.
The code created is well formed and properly commented so that you can edit them easily.
CSS3 Generator is a nice way to create rounded corners for elements for web design without having to use any images for the same.