This example will show you how to use a transparent PNG image in a webpage. When it comes to slicing and using images in webpage, we have to use some images in gif form sometimes particularly for curves and rounded corners while creating boxes by images for webpage. We use images in background. Give any gif a shadow or glow, export it transparent and use it in webpage and you will see that transparency quality is not so good.
Once upon a time, there was a software engineer who used to develop programs on his Pentium machine, sitting under a tree on the banks of a river. He used to earn his bread by selling those programs in the Sunday market. One day, while he was working, his machine tumbled off the table when he agitated with frustration over a bug and fell in the river. Encouraged by the story of his childhood; “the woodcutter and the axe”, he started praying to the River Goddess. The River Goddess wanted to test him and so appeared only after one month of rigorous prayers.
There is a pretty excellent service which take care about HTML, XHTML, CSS which you produce and they certify these to be validated or not. You know what I am talking about? Of course I am talking about W3C. They save us by helping us conclude that whether the code is validated or not!