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

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The document validates according to the specified schema(s).

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 1440 milliseconds.

About this checkerReport an issueVersion: 21.6.16