Ok, in my time of using CSS I have basically always used a DIV tag when specifying some CSS class or ID. In the limited online sites that I have gone to, they simply define the 2 tags but don't ...

Just create a CSS class and apply it using a SPAN tag everywhere the name or phrase appears. Add the TITLE attribute to the opening SPAN tag to create a pop-up tooltip for that section.

Span and Div are container tags that define parts of your document. They are great for applying styles to a section of text. They are also helpful for dividing your document into parts such as header, ...