Removed some redundant code.

Despite knowing this will come to bite me in the ass, I noticed that there was a
completely bogus stanza that would just run "select(0)" in all cases, so I went
ahead and did it.
Fixed syntax error (missing "$html" decl.)
Compact CSS.
Added some "backup" CSS rules.

Just in case this stuff gets more standardized (as it appears to be doing), I
want GOPF to Just Work (tm) when that happens, so I put non-webkit and non-moz
versions of the commands.

The versions I put were inferred from the commonalities between the webkit at
moz versions.