This is a short video that explains four basic rules for coding XHTML. Most validation errors can be avoided if these rules are followed.

A common page layout has a fixed-width  centered box that contains the page content, how can we center this box on the page using CSS? You can use CSS to center a fixed-width box by setting its left and right margins to auto.

{mos_sb_discuss:23} Because scope in javascript can be the source of very hard to track bugs, we will see how work the variable scoping in javascript. Depending on your programming languages background (block level scoping or not), you may have some surprises.

   

In this tutorial we'll program a CGI executable using the C language and we'll also configure a Windows environment so to test it.