Adding notes?, HELP! Options

[ZeT0]

I've tried using ;

CODE

<style>NOTE {  THIS IS THE PROMOTIONAL SECTION  }</style>

But when it comes to putting it all though my code, not just in the about me, and left side, it stuff up my style sheet, and makes everything not fit.

When I used ;

CODE

< NOTE !>

Or what ever that one is, the bands couldn't see it after it went though myspace.

What's a good code to use to add notes throughout the WHOLE code?