Here is the example: How to display UL elements as a flat comma-separated list. The advantage of this is that changing the default separator from list type to comma or | or – or whatever now means only having to change one character in the stylesheet.
When you’ve started using CSS positioning to lay out your pages and you need to show the first or second element to be on top. To do this, you need the “z-index” property of CSS. By specifying the z-index style attribute of the html element you can bring it to the front of all other [...]