XML Schema Validator

Location:	http://web.oesterchat.com/2011/11/23/mozilla-treffen-in-koeln-2011-fotos/
Redirect:
Well-formed:	True
Valid:	False
HTTP status code:	200 OK
HTTP Content Type:	text/html; charset=UTF-8
HTTP encoding:	utf-8
XML encoding:	utf-8
Used encoding:	utf-8
Public Identifier:	-//W3C//DTD XHTML 1.1//EN
System Identifier:	http://www.w3.org/TR/xhtml1/DTD/xhtml11.dtd
Validated as:	XHTML 1.1

You should specify the same value for the 'lang' and 'xml:lang' attributes. (2:2)
```
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de">
 ^
```

The 'decoding' attribute is not declared. (46:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111001-001602.jpg" alt="Große Werbeleuchtreklame von 4711 im Inneren des Bahnsteiggeländes im Kölner Hauptbahnhof." /></dt>
         ^

The 'decoding' attribute is not declared. (48:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111001-114016.jpg" alt="Großes Werbebanner mit dem Mozilla-Schriftzug" /></dt>
         ^

The 'decoding' attribute is not declared. (50:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111001-114000.jpg" alt="Vorderteil des Hilton-Konferenzraums namens Apollo mit dem Beamer und den Teilnehmerplätzen" /></dt>
         ^

The 'decoding' attribute is not declared. (52:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111001-172024.jpg" alt="Hinterteil des Hilton-Konferenzraums namens Apollo mit dem großen Werbeplakat und den Teilnehmerplätzen" /></dt>
         ^

The 'decoding' attribute is not declared. (54:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111001-122554.jpg" alt="Foto einiger Teilnehmer im Konferenzraum am Beginn des Treffens" /></dt>
         ^

The 'decoding' attribute is not declared. (56:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111001-172532.jpg" alt="Foto von einem der zwischenzeitlichen Imbisse" /></dt>
         ^

The 'decoding' attribute is not declared. (58:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111001-203355.jpg" alt="Das urige Brauhaus Sünner im Walfisch" /></dt>
         ^

The 'decoding' attribute is not declared. (60:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111001-225834.jpg" alt="Möwen jagen nachts im Lichtkegel des Kölner Doms" /></dt>
         ^

The 'decoding' attribute is not declared. (62:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111002-091414.jpg" alt="Konferenztisch mit Getränken und dem großen Mozilla-Banner im Hintergrund" /></dt>
         ^

The 'decoding' attribute is not declared. (64:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111002-125041.jpg" alt="Die Leute stehen beim Mittagsimbiss vor dem Konferenzraum" /></dt>
         ^

The 'decoding' attribute is not declared. (66:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111002-173717.jpg" alt="Die Leute beim Auschecken im Foyer des Hotels" /></dt>
         ^

The 'decoding' attribute is not declared. (68:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111002-182601.jpg" alt="Samsung-Tablet mit darauf optimierter Firefox-Vorversion" /></dt>
         ^

The 'decoding' attribute is not declared. (70:10)

<dt><img decoding="async" src="http://web.oesterchat.com/data/privat/koeln2011/20111002-190802.jpg" alt="Leute im Café vor dem Kölner Hauptbahnhof" /></dt>
         ^

The 'cols' attribute is invalid. The value '100%' is invalid according to its datatype 'http://www.w3.org/1999/xhtml/datatypes/:Number'. The string '100%' is not a valid Integer value. (108:42)
```
<p><textarea name="comment" id="comment" cols="100%" rows="10" tabindex="4"></textarea></p>
                                         ^
```

The 'data-prefix' attribute is not declared. (113:199)

<p style="display: none;"><input type="hidden" id="akismet_comment_nonce" name="akismet_comment_nonce" value="dac5e3a0ea" /></p><p style="display: none !important;" class="akismet-fields-container" data-prefix="ak_"><label>&#916;<textarea name="ak_hp_textarea" cols="45" rows="8" maxlength="100"></textarea></label><input type="hidden" id="ak_js_1" name="ak_js" value="185"/><script>document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() );</script></p>
                                                                                                                                                                                                      ^

The 'maxlength' attribute is not declared. (113:281)

<p style="display: none;"><input type="hidden" id="akismet_comment_nonce" name="akismet_comment_nonce" value="dac5e3a0ea" /></p><p style="display: none !important;" class="akismet-fields-container" data-prefix="ak_"><label>&#916;<textarea name="ak_hp_textarea" cols="45" rows="8" maxlength="100"></textarea></label><input type="hidden" id="ak_js_1" name="ak_js" value="185"/><script>document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() );</script></p>
                                                                                                                                                                                                                                                                                        ^

The required attribute 'type' is missing. (113:377)

<p style="display: none;"><input type="hidden" id="akismet_comment_nonce" name="akismet_comment_nonce" value="dac5e3a0ea" /></p><p style="display: none !important;" class="akismet-fields-container" data-prefix="ak_"><label>&#916;<textarea name="ak_hp_textarea" cols="45" rows="8" maxlength="100"></textarea></label><input type="hidden" id="ak_js_1" name="ak_js" value="185"/><script>document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() );</script></p>
                                                                                                                                                                                                                                                                                                                                                                                        ^

If you think the validation result is incorrect or if you have difficulties to understand the messages, feel free to write me an e-mail.