Okay, let's assume that you are using the border properties in your document. This is fine for a while, but you then you decide to change the background to a tiled image. Suddenly, the black borders don't look so good. That'll make the border transparent, preserve the ten-pixel spacing, and be good enough for my purposes. So you check the page in Navigator 4, and there's the effect you wanted.
Every image has at least ten pixels of blank space around it.
If a border has been set to have a style of none , its width is automatically set to zero. Although this may not be obvious from the CSS1 specification, the authors of the specification have confirmed that this is the correct behavior. You may at this point be wondering who had this particular brain drizzle. Actually, it makes a whole lot of sense. Let's say that you have a drinking glass.