I’ve been having problem applying css on email. I almost wanted to sleep but bumping on these articles awoke my senses.

You will find tips and guidelines on these urls so please read them for their explanations on how to code html css driven for your emails:

http://warpspire.com/tipsresources/web-production/css-email-the-dirty-little-secret/
http://reachcustomersonline.com/2004/11/11/09.27.00/
http://www.webreference.com/programming/css_html

Bottom line just remember these things I got it from the webreference.com

Do …

• Use inline style declarations for the most important styles.
• Declare styles in a style tag when they’re not absolutely necessary.
• Use table tags for multi-column layouts and floating elements.
• Test your email in multiple standalone and Web-based email clients.

Don’t …

• Use external stylesheets.
• Use floating div tags for multi-column layouts.
• Expect CSS background images to show up in most email clients.
• Rely on images showing up, especially background images.

Now, I can sleep