By this article I will tell you the basic concept of Css, “Box Model“. It is impossible to tell you all subjects about css here. Because of this if you do not know anything about css, please first have a look at the ccs tutorial at
Let’s talk about “Box Model”… Css accepts that all the objects (paragraph, images, link etc.) are some kind of boxes. Then you can replace your box where you want it to be. For a better explanation let me show you a picture.