Does anyone have or know of a plain language
plus graphical depiction chart that specifies xhtml
coding and effects, as in, with examples?

I've searched the web lotsa times and can't find
anything suitable. I need something that I can
keep on hand that (for example) might go like
this:

This sentence would look this way
 with this <xhtmlcode>.
[e.g. <i>]
This sentence would look this way.

I'm finding it hard to locate examples of such
items as <blockquote> <cite> <em> etc., WITH
actual representations of what the effect is.