ruby rt { font:normal 50% sans-serif; text-decoration:none; }
ruby rp { font:normal 50% sans-serif; }
span.ruby         { position:relative; line-height:2.0em; }
span.ruby span.rt { position:absolute; left:0; top:-1.0em; font:normal 50%/1 "MS PGothic",sans-serif; text-decoration:none; text-indent:0; }
span.ruby span.rp { display:none; }