Please check your source for the css valid button

I just validated my webpage for XHTML 1.0 Strict and it passed. I added the nice button.
I then validated for CSS and it passed . I then safed the page under a new name and attempted to
revalidiateit for XHTML 1.0 Strict because the close slash at the end of the CSS img tag is missing.
Can you please modify this?.

Regards 
Phillip Hamilton-Wilks
www.mywebstuff.com

<p>
      <a href="http://validator.w3.org/check/referer"><img
          src="http://www.w3.org/Icons/valid-xhtml10"
          alt="Valid XHTML 1.0!" height="31" width="88" /></a>
  <a href="http://jigsaw.w3.org/css-validator/">

  <img style="border:0;width:88px;height:31px"
       src="http://jigsaw.w3.org/css-validator/images/vcss" 
       alt="Valid CSS!" />
 </a>
  </p>