This tool is an ongoing experiment in better HTML checking, and its behavior remains subject to change

Showing results for http://ceur-ws.org/Vol-1551/

Checker Input

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  1. Error: Bad value http://www.w3.org/1999/xhtml for the attribute xmlns (only http://www.w3.org/1999/xhtml permitted here).

    From line 2, column 31; to line 3, column 110

    5-12-02-->↩<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">↩ <h

  2. Warning: Attribute xmlns is not serializable as XML 1.0.

    From line 2, column 31; to line 3, column 110

    5-12-02-->↩<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">↩ <h

  3. Info: Trailing slash on void elements has no effect and interacts badly with unquoted attribute values.

    From line 5, column 7; to line 5, column 30

    ad>↩ <meta charset="utf-8" />↩

  4. Info: Trailing slash on void elements has no effect and interacts badly with unquoted attribute values.

    From line 7, column 7; to line 7, column 76

    le>↩ <meta content="width=device-width, initial-scale=1" name="viewport" />↩

  5. Info: Trailing slash on void elements has no effect and interacts badly with unquoted attribute values.

    From line 8, column 7; to line 8, column 81

    />↩ <link rel="stylesheet" media="all" title="CEUR-WS" href="../ceur-ws.css" />↩

  6. Info: Trailing slash on void elements has no effect and interacts badly with unquoted attribute values.

    From line 9, column 7; to line 9, column 90

    />↩ <link rel="stylesheet" media="all" title="CEUR-WS" href="../ceur-ws-semantic.css" />↩ </

  7. Info: Trailing slash on void elements has no effect and interacts badly with unquoted attribute values.

    From line 13, column 93; to line 13, column 224

    -ws.org/"><img alt="CEUR-WS" height="100" src="https://ceur-ws.org/CEUR-WS-logo.png" width="390" /></a></

There were errors.

Used the schema for HTML + SVG 1.1 + MathML 3.0 + RDFa 1.1.

Used the HTML parser. Externally specified character encoding was utf-8.

Total execution time 417 milliseconds.

About this checker • Report an issue • Version: 25.7.26