If you want rounded corners with CSS and your web site must be compatible with Internet Explorer 8 and lower, then this video tutorial is just perfect for you. Just a little piece of advice: the technique explained here uses fixed widths, both for images and boxes. If you want fluid widths, then you need to have four separate images to be applied on each side. Further, you also need four nested elements to get this effect. On the contrary, if dimensions are not a problem, then you can deploy these techniques as soon as you get them.