This will show you the div tag...not much use on its own, but also given here is a CSS primer, showing what is to come in the next section

divs

The div is a 'division' element. It does not have much meaning semantically, but becomes essential when we start moving our page around

intro to CSS

So our div didn't do much. But, add this style into the head section, and watch the div come alive.

this links to CSS Introduction