Sending Email in asp.net with applying stylesheet in receiving email

Hi to all,

I have an webform in asp.net with c# application. I had created on stylesheet also. I called the stylesheet class for the textbox control. So whatever I entered in that textbox, the style has applied. Then I had used that textbox as a subject to send the email. Email functionalities are working fine. But received mail cannot applied for Stylesheet. I need to apply all the styles whatever i had created.

Can anyone tell me the solution for this. Waiting for ur valuable reply.
by,
sundar.