Neither site contains any virus. These are old web pages and have been used safely for many years. What led you to believe that either was infected?

Do you understand the concept of the Style Separator? If not, you need to learn it.

The macro recorder is often unable to reproduce things that you do.
If your heading styles are "linked," attempting to apply the style to selected text is going to apply a poor-relation to that style, a quasi-character style, to the text.

What, exactly, step-by-step, is it you want your macro to do?
Why? What do you hope to accomplish by doing this?