Block style tags are used to mainpulate the text within a box, table or other html element.
The following example shows how Block is used in a table.
Click for
If more information is necessay they will be added with the next update.
Like I said before there are many way's to use css to enhance your web site design. Please use the resources and tools to help you achieve the site you desire. Also remember that css can make updating or changing your site much easier and quicker than standard html by using external sheets and only having to change one or two things instead of changing the same thing on all your pages. Especially if your site contains many pages.