<html style="background: #88F; color: #88F;" xmlns="http://www.w3.org/1999/xhtml" xmlns:m="http://www.w3.org/1998/Math/MathML"> <body> <!-- Test that text that should be invisible is invisible (assuming text is drawn at all) --> <p>This should be invisible.</p> <!-- Test that color inherits into MathML (assuming MathML text is drawn at all) --> <p><m:math><m:mi>x</m:mi></m:math></p> </body> </html>