Ryan Boudreaux covers the basics about CSS ... number of ID attributes in the selector and apply the value 0,1,0,0 for each or A=0, B=1, C=0, D=0 or 0,x,0,0. C. Count the number of classes ...

We can get any attribute (id, class, style ... we will cover filtering objects, changing CSS classes, changing an object’s inner text, and other fun stuff! Check out this article I found ...

To override an attribute that a CSS class defines ... developer who coded your Web page to create a CSS class that references a DIV's ID. You may not see a class reference in your DIV if that ...