Change to XHTML

Hello dear w3 css validation service,

currently you suggest users to use

<p>
 <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>

to place a css logo on their site.
The html version you provice is probably HTML 4.01. What about migrating to
XHTML?

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

(XHTML BASIC 1.0)
and

<p>
 <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!" width="88" height="31"
    />
 </a>
</p>

(XHTML 1.0 and XHTML 1.1)

Greetings

Christian Wolfgang Hujer