ID and ids: example

On this page, default H2s are red.

This one is blue. It has an ID of A1.

// inside the STYLE element:
classes.style1.H2.color = "red";
ids.A1.color = "blue";

// elements in the BODY:
<H2 CLASS="style1">default H2</H2>
<H2 CLASS="style1" ID="A1">
This one is blue ...</H2>