$no_errors_interoperable_msg
<p>
<a href="http://jigsaw.w3.org/css-validator/check/referer">
<img style="border:0;width:88px;height:31px"
src="//jigsaw.w3.org/css-validator/images/vcss"
alt="$valid_CSS" />
</a>
</p>
<p>
<a href="http://jigsaw.w3.org/css-validator/check/referer">
<img style="border:0;width:88px;height:31px"
src="//jigsaw.w3.org/css-validator/images/vcss-blue"
alt="$valid_CSS" />
</a>
</p>
($no_errors_close_tags_msg)
$no_errors_dl_local_msg