The following macros are defined:
.HTML title Print an HTML header marking the output as HTML 4.01 loose transitional encoded in UTF. If given, the title is printed inside <title> tags. This macro opens the <html> tag, opens and closes the <head> section, and opens <body> . It invokes the .HEAD macro inside the <head> section. To add arbitrary lines to the header, append to .HEAD before invoking .HTML .
.FS, .FE Accumulate footnotes and print them at the end of the document under a Notes heading. These replace the macros in ms (6). To emit the notes accumulated so far, invoke .NOTES .
.PS, .PE Replace input bracketed .PS and .PE with a PNG image corresponding to the output of running troff (1) on the input.
.TS, .TE Identical to .PS and .PE .
.B1 margin width, \fL.B2 Format the input between .B1 and .B2 inside a box, with margin (default 10) pixels between the box and the text. The box is set to be width (default 60) percent of the current output width.