QUESTIONS FOR THE CLASS: What is the function of stories? Is anything really worthwhile if it's not referencing something else? We've had 2000 years of human culture, so how sure are we that we should add more? Is the Bible Extended Universe is the greatest marketing campaign? Is it better to serve palatable work in Heaven or make whatever you want in Hell? Why do we think any of us have a choice?
There are two main ways to reference a div or any other HTML element from your style-sheet, you can use an id (id="idname") or a class (class="classname") so which one is best? Well the answer is it depends on what you are trying to do.
An id must be unique, this means you cannot have two elements on the one page with the same id. So an id is useful for something that never repeats on a page like a header or footer. Classes don't have to be unique so they can be used as many times as necessary. A good example of a repeatable element would be a link style, you can have as many links on a page as you like and they can all look the same by giving them the same class name.
Because the columns in this stackable design can be repeated any number of times we cannot use ids because they would be duplicated. Only classes allow us to repeat the columns as many times as we like. So please keep that in mind if you are modifying this design. Of course if your modified layout does not have repeated columns then you can change some of the classes back to ids.
We're a species whose prime directive is sticking together. We live in a world that equates money with power. Connecting and liking each other is how we survive. If we don't learn to like this, we suffer worse. If you want to live like a lone leopard, that's fine. But you'll die like one, too, while this hideous mountain of naked mole rats gets by blind, but happy and cooperative and with a goal.