<s>
Wireless	B-General_Concept
Markup	I-General_Concept
Language	I-General_Concept
(	O
WML	O
)	O
,	O
based	O
on	O
XML	B-Protocol
,	O
is	O
a	O
now-obsolete	O
markup	O
language	O
intended	O
for	O
devices	O
that	O
implement	O
the	O
Wireless	B-Protocol
Application	I-Protocol
Protocol	I-Protocol
(	O
WAP	O
)	O
specification	O
,	O
such	O
as	O
mobile	O
phones	O
.	O
</s>
<s>
It	O
provides	O
navigational	O
support	O
,	O
data	O
input	O
,	O
hyperlinks	O
,	O
text	O
and	O
image	O
presentation	O
,	O
and	O
forms	O
,	O
much	O
like	O
HTML	B-Language
(	O
Hypertext	B-Language
Markup	I-Language
Language	I-Language
)	O
.	O
</s>
<s>
It	O
preceded	O
the	O
use	O
of	O
other	O
markup	O
languages	O
used	O
with	O
WAP	O
,	O
such	O
as	O
XHTML	B-Language
and	O
HTML	B-Language
itself	O
,	O
which	O
achieved	O
dominance	O
as	O
processing	O
power	O
in	O
mobile	O
devices	O
increased	O
.	O
</s>
<s>
Building	O
on	O
Openwave	O
's	O
HDML	B-General_Concept
,	O
Nokia	O
's	O
"	O
Tagged	B-General_Concept
Text	I-General_Concept
Markup	I-General_Concept
Language	I-General_Concept
"	O
(	O
TTML	O
)	O
and	O
Ericsson	O
's	O
proprietary	O
markup	O
language	O
for	O
mobile	O
content	O
,	O
the	O
WAP	O
Forum	O
created	O
the	O
WML	O
1.1	O
standard	O
in	O
1998	O
.	O
</s>
<s>
It	O
was	O
an	O
attempt	O
at	O
bridging	O
WML	O
and	O
XHTML	B-Language
Basic	O
before	O
the	O
WAP	O
2.0	O
spec	O
was	O
finalized	O
.	O
</s>
<s>
In	O
the	O
end	O
,	O
XHTML	B-Language
Mobile	O
Profile	O
became	O
the	O
markup	O
language	O
used	O
in	O
WAP	O
2.0	O
.	O
</s>
<s>
WML	O
decks	O
are	O
stored	O
on	O
an	O
ordinary	O
web	B-Application
server	I-Application
configured	O
to	O
serve	O
the	O
text/vnd.wap.wml	O
MIME	B-Application
type	I-Application
in	O
addition	O
to	O
plain	O
HTML	B-Language
and	O
variants	O
.	O
</s>
<s>
The	O
WML	O
cards	O
when	O
requested	O
by	O
a	O
device	O
are	O
accessed	O
by	O
a	O
bridge	O
(	O
WAP	O
gateway	O
)	O
,	O
which	O
sits	O
between	O
mobile	O
devices	O
and	O
the	O
World	O
Wide	O
Web	O
,	O
passing	O
pages	O
from	O
one	O
to	O
the	O
other	O
much	O
like	O
a	O
proxy	B-Application
.	O
</s>
<s>
The	O
gateways	O
send	O
the	O
WML	O
pages	O
on	O
in	O
a	O
form	O
suitable	O
for	O
mobile	O
device	O
reception	O
(	O
WAP	B-Protocol
Binary	I-Protocol
XML	I-Protocol
)	O
.	O
</s>
<s>
This	O
process	O
is	O
hidden	O
from	O
the	O
phone	O
,	O
so	O
it	O
may	O
access	O
the	O
page	O
in	O
the	O
same	O
way	O
as	O
a	O
browser	O
accesses	O
HTML	B-Language
,	O
using	O
a	O
URL	O
(	O
for	O
example	O
,	O
http://example.com/foo.wml	O
)	O
.	O
</s>
<s>
Mobile	O
devices	O
are	O
moving	O
towards	O
allowing	O
more	O
XHTML	B-Language
and	O
even	O
standard	O
HTML	B-Language
as	O
processing	O
power	O
in	O
handsets	O
increases	O
.	O
</s>
<s>
The	O
Presto	B-Application
layout	I-Application
engine	I-Application
(	O
used	O
by	O
Opera	B-Application
before	O
its	O
switch	O
to	O
Blink	B-Language
)	O
understood	O
WML	O
natively	O
.	O
</s>
<s>
Mozilla	B-Operating_System
based	O
browsers	O
(	O
Firefox	B-Application
(	O
before	O
its	O
update	O
to	O
version	O
57	O
)	O
,	O
SeaMonkey	B-Language
,	O
MicroB	B-Protocol
)	O
could	O
interpret	O
WML	O
through	O
addon	O
.	O
</s>
<s>
Google	B-Application
Chrome	I-Application
can	O
also	O
interpret	O
WML	O
via	O
two	O
extensions	O
:	O
and	O
.	O
</s>
