Problem mit CSS und PHP

[Nils_13]

Was ist an dieser Zeile ungültig ?

Zitat:

Im Dokument befindet sich in Zeile 50 und Spalte 92 ein ungültiges Zeichen.
Dieses Zeichen ist in der verwendeten Zeichensatzkodierung (utf-8) nicht erlaubt.

Code:

   
<div id="header"></div>

Läuft anscheinend nicht so ganz:

Zitat:

Result: Failed validation,
File: texteditor.php
Encoding:
Doctype:

Sorry, I am unable to validate this document because its content type is application/x-httpd-php-source, which is not currently supported by this service.

The Content-Type field is sent by your web server (or web browser if you use the file upload interface) and depends on its configuration. Commonly, web servers will have a mapping of filename extensions (such as ".html") to MIME Content-Type values (such as text/html).

That you received this message can mean that your server is not configured correctly, that your file does not have the correct filename extension, or that you are attempting to validate a file type that we do not support yet. In the latter case you should let us know that you need us to support that content type (please include all relevant details, including the URL to the standards document defining the content type) using the instructions on the Feedback Page.

@malo: Ich habe nach Parser gesucht und nur schrott gefunden