The World Wide Web Consortium (W3C) provides, under its Math Group, XSL Transformation Sheets, known as the Universal MathML Style Sheets (UMSS), in order to facilitate seamless delivery of XHTML files with MathML content to the various viewers capable of rendering XHTML with MathML content.
The UMSS sheets and directions for them are available from
All of the items suffixed with ".xsl" in this distribution are unmodified copies of the W3C UMSS materials.
The World Wide Web Consortium's Software License is available at
http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231