<s>
Mozilla	B-Operating_System
Composer	O
is	O
the	O
free	B-License
and	I-License
open-source	I-License
HTML	B-General_Concept
editor	I-General_Concept
and	O
web	O
authoring	O
module	O
of	O
the	O
Mozilla	B-Language
Application	I-Language
Suite	I-Language
(	O
the	O
predecessor	O
to	O
SeaMonkey	B-Language
)	O
.	O
</s>
<s>
It	O
is	O
compatible	O
with	O
Windows	O
,	O
macOS	B-Operating_System
and	O
Linux	B-Application
.	O
</s>
<s>
Composer	O
is	O
a	O
graphical	B-Application
WYSIWYG	B-Application
HTML	B-General_Concept
editor	I-General_Concept
.	O
</s>
<s>
One	O
also	O
can	O
view	O
,	O
write	O
and	O
edit	O
HTML	B-Language
source	O
code	O
with	O
Composer	O
.	O
</s>
<s>
In	O
September	O
2008	O
Daniel	O
Glazman	O
announced	O
a	O
new	O
WYSIWYG	B-Application
HTML	B-General_Concept
editor	I-General_Concept
,	O
BlueGriffon	B-General_Concept
,	O
written	O
from	O
scratch	O
and	O
based	O
on	O
Mozilla	B-Language
Gecko	I-Language
and	O
XULRunner	B-Language
.	O
</s>
<s>
SeaMonkey	B-Language
,	O
the	O
community-driven	O
successor	O
to	O
Mozilla	B-Language
Suite	I-Language
,	O
includes	O
an	O
HTML	B-General_Concept
editor	I-General_Concept
named	O
Composer	O
that	O
is	O
developed	O
from	O
the	O
Mozilla	B-Operating_System
Composer	O
code	O
contained	O
in	O
the	O
original	O
Mozilla	B-Language
Suite	I-Language
.	O
</s>
<s>
Nvu	B-General_Concept
(	O
pronounced	O
"	O
N-view	O
"	O
)	O
is	O
a	O
WYSIWYG	B-Application
HTML	B-General_Concept
editor	I-General_Concept
,	O
based	O
on	O
Mozilla	B-Operating_System
Composer	O
.	O
</s>
<s>
It	O
is	O
intended	O
to	O
be	O
an	O
open-source	B-Application
alternative	O
to	O
proprietary	B-Application
software	I-Application
like	O
Microsoft	B-Application
Expression	I-Application
Web	I-Application
and	O
Adobe	B-Language
Dreamweaver	I-Language
.	O
</s>
<s>
As	O
a	O
WYSIWYG	B-Application
editor	I-Application
,	O
it	O
is	O
designed	O
to	O
be	O
easy	O
for	O
novice	O
users	O
,	O
and	O
does	O
not	O
require	O
any	O
knowledge	O
of	O
HTML	B-Language
or	O
CSS	B-Language
to	O
use	O
.	O
</s>
<s>
It	O
runs	O
on	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
Windows	O
and	O
Linux	B-Application
and	O
incorporates	O
Cascading	B-Language
Style	I-Language
Sheets	I-Language
support	O
and	O
other	O
improvements	O
from	O
software	O
company	O
Disruptive	O
Innovations	O
.	O
</s>
<s>
Nvu	B-General_Concept
was	O
the	O
brainchild	O
of	O
Kevin	O
Carmony	O
,	O
CEO	O
for	O
Linspire	O
,	O
who	O
wanted	O
an	O
easy-to-use	O
,	O
WYSIWYG	B-Application
HTML	B-General_Concept
editor	I-General_Concept
for	O
Linux	B-Application
users	O
.	O
</s>
<s>
Under	O
Carmony	O
's	O
direction	O
,	O
Linspire	O
started	O
and	O
sponsored	O
Nvu	B-General_Concept
,	O
hiring	O
Daniel	O
Glazman	O
,	O
former	O
Netscape	O
Communications	O
Corporation	O
employee	O
,	O
to	O
be	O
the	O
lead	O
developer	O
.	O
</s>
<s>
The	O
original	O
plan	O
in	O
June	O
2005	O
was	O
to	O
merge	O
back	O
the	O
numerous	O
changes	O
into	O
Mozilla	B-Operating_System
Composer	O
's	O
source	O
code	O
tree	O
.	O
</s>
<s>
Since	O
then	O
the	O
Mozilla	B-Language
Suite	I-Language
has	O
been	O
discontinued	O
(	O
then	O
reintroduced	O
as	O
SeaMonkey	B-Language
)	O
,	O
and	O
no	O
one	O
has	O
merged	O
the	O
Nvu	B-General_Concept
code	O
back	O
into	O
Composer	O
.	O
</s>
<s>
Nvu	B-General_Concept
complies	O
with	O
the	O
W3C	O
's	O
web	O
standards	O
.	O
</s>
<s>
By	O
default	O
,	O
pages	O
are	O
created	O
in	O
accordance	O
to	O
HTML	B-Language
4.01	I-Language
Transitional	O
and	O
use	O
CSS	B-Language
for	O
styling	O
,	O
but	O
the	O
user	O
can	O
change	O
the	O
settings	O
and	O
choose	O
between	O
:	O
</s>
<s>
CSS	B-Language
styling	I-Language
or	O
the	O
old	O
<font>	O
based	O
styling	O
.	O
</s>
<s>
The	O
application	O
includes	O
a	O
built-in	O
HTML	B-Application
validator	I-Application
,	O
which	O
uploads	O
pages	O
to	O
the	O
W3C	O
's	O
HTML	B-Application
Validator	I-Application
and	O
checks	O
for	O
compliance	O
.	O
</s>
<s>
Daniel	O
Glazman	O
,	O
the	O
lead	O
developer	O
of	O
Nvu	B-General_Concept
,	O
announced	O
on	O
September	O
15	O
,	O
2006	O
,	O
that	O
he	O
had	O
stopped	O
official	O
development	O
on	O
Nvu	B-General_Concept
and	O
that	O
he	O
was	O
developing	O
a	O
successor	O
as	O
a	O
Mozilla.org	B-Operating_System
project	O
.	O
</s>
<s>
It	O
is	O
written	O
from	O
scratch	O
and	O
based	O
on	O
Mozilla	B-Operating_System
trunk	O
Gecko	B-Language
1.9	I-Language
and	O
XULRunner	B-Language
.	O
</s>
<s>
PHP	B-Application
and	O
CSS	B-Language
would	O
be	O
supported	O
.	O
</s>
<s>
A	O
community-driven	O
fork	B-Application
,	O
KompoZer	B-General_Concept
,	O
maintains	O
Nvu	B-General_Concept
codebase	O
and	O
fixes	O
bugs	O
until	O
a	O
successor	O
to	O
Nvu	B-General_Concept
is	O
released	O
.	O
</s>
<s>
Glazman	O
's	O
project	O
is	O
called	O
BlueGriffon	B-General_Concept
.	O
</s>
<s>
KompoZer	B-General_Concept
is	O
a	O
discontinued	O
open	B-Application
source	I-Application
WYSIWYG	B-Application
HTML	B-General_Concept
editor	I-General_Concept
based	O
on	O
the	O
Nvu	B-General_Concept
.	O
</s>
<s>
KompoZer	B-General_Concept
was	O
forked	B-Application
as	O
a	O
community-driven	O
project	O
with	O
development	O
coordinated	O
through	O
SourceForge	B-Application
.	O
</s>
<s>
KompoZer	B-General_Concept
's	O
WYSIWYG	B-Application
editing	O
capabilities	O
are	O
one	O
of	O
the	O
main	O
attractions	O
of	O
the	O
software	O
.	O
</s>
<s>
In	O
addition	O
,	O
KompoZer	B-General_Concept
allows	O
direct	O
code	O
editing	O
as	O
well	O
as	O
a	O
split	O
code-graphic	O
view	O
.	O
</s>
<s>
The	O
most	O
recent	O
version	O
is	O
KompoZer	B-General_Concept
0.8	O
beta	O
3	O
,	O
released	O
February	O
2010	O
,	O
using	O
Gecko	O
1.8.1	O
.	O
</s>
<s>
As	O
a	O
32-bit	O
application	O
,	O
it	O
is	O
no	O
longer	O
supported	O
on	O
macOS	B-Device
Catalina	I-Device
and	O
later	O
versions	O
.	O
</s>
<s>
KompoZer	B-General_Concept
complies	O
with	O
the	O
W3C	O
's	O
web	O
standards	O
.	O
</s>
<s>
By	O
default	O
,	O
pages	O
are	O
created	O
in	O
accordance	O
to	O
HTML	B-Language
4.01	I-Language
Strict	O
and	O
use	O
Cascading	B-Language
Style	I-Language
Sheets	I-Language
(	O
CSS	B-Language
)	O
for	O
styling	O
,	O
but	O
the	O
user	O
can	O
change	O
the	O
settings	O
and	O
choose	O
between	O
:	O
</s>
<s>
CSS	B-Language
styling	I-Language
or	O
the	O
old	O
<font>	O
based	O
styling	O
.	O
</s>
<s>
The	O
application	O
can	O
call	O
on	O
the	O
W3C	O
HTML	B-Application
validator	I-Application
,	O
which	O
uploads	O
pages	O
to	O
the	O
W3C	O
Markup	O
Validation	O
Service	O
and	O
checks	O
for	O
compliance	O
.	O
</s>
