<s>
Web	O
pages	O
authored	O
using	O
HyperText	B-Language
Markup	I-Language
Language	I-Language
(	O
HTML	B-Language
)	O
may	O
contain	O
multilingual	O
text	O
represented	O
with	O
the	O
Unicode	O
universal	O
character	B-General_Concept
set	I-General_Concept
.	O
</s>
<s>
Key	O
to	O
the	O
relationship	O
between	O
Unicode	B-Language
and	I-Language
HTML	I-Language
is	O
the	O
relationship	O
between	O
the	O
"	O
document	O
character	B-General_Concept
set	I-General_Concept
"	O
,	O
which	O
defines	O
the	O
set	O
of	O
characters	O
that	O
may	O
be	O
present	O
in	O
a	O
HTML	B-Language
document	O
and	O
assigns	O
numbers	O
to	O
them	O
,	O
and	O
the	O
"	O
external	O
character	B-General_Concept
encoding	I-General_Concept
"	O
,	O
or	O
"	O
charset	B-General_Concept
"	O
,	O
used	O
to	O
encode	O
a	O
given	O
document	O
as	O
a	O
sequence	O
of	O
bytes	B-Application
.	O
</s>
<s>
In	O
RFC	O
1866	O
,	O
the	O
initial	O
HTML	B-Language
2.0	O
standard	O
,	O
the	O
document	O
character	B-General_Concept
set	I-General_Concept
was	O
defined	O
as	O
ISO-8859-1	O
(	O
later	O
HTML	B-Language
standard	O
defaults	O
to	O
Windows-1252	O
encoding	O
)	O
.	O
</s>
<s>
The	O
external	O
character	B-General_Concept
encoding	I-General_Concept
is	O
chosen	O
by	O
the	O
author	O
of	O
the	O
document	O
(	O
or	O
the	O
software	O
the	O
author	O
uses	O
to	O
create	O
the	O
document	O
)	O
and	O
determines	O
how	O
the	O
bytes	B-Application
used	O
to	O
store	O
and/or	O
transmit	O
the	O
document	O
map	O
to	O
characters	O
from	O
the	O
document	O
character	B-General_Concept
set	I-General_Concept
.	O
</s>
<s>
Characters	O
not	O
present	O
in	O
the	O
chosen	O
external	O
character	B-General_Concept
encoding	I-General_Concept
may	O
be	O
represented	O
by	O
character	B-General_Concept
entity	I-General_Concept
references	I-General_Concept
.	O
</s>
<s>
The	O
relationship	O
between	O
Unicode	B-Language
and	I-Language
HTML	I-Language
tends	O
to	O
be	O
a	O
difficult	O
topic	O
for	O
many	O
computer	O
professionals	O
,	O
document	O
authors	O
,	O
and	O
web	O
users	O
alike	O
.	O
</s>
<s>
The	O
accurate	O
representation	O
of	O
text	O
in	O
web	O
pages	O
from	O
different	O
natural	O
languages	O
and	O
writing	O
systems	O
is	O
complicated	O
by	O
the	O
details	O
of	O
character	B-General_Concept
encoding	I-General_Concept
,	O
markup	O
language	O
syntax	O
,	O
font	O
,	O
and	O
varying	O
levels	O
of	O
support	O
by	O
web	B-Application
browsers	I-Application
.	O
</s>
<s>
Web	O
pages	O
are	O
typically	O
HTML	B-Language
or	O
XHTML	B-Language
documents	O
.	O
</s>
<s>
Both	O
types	O
of	O
documents	O
consist	O
,	O
at	O
a	O
fundamental	O
level	O
,	O
of	O
characters	O
,	O
which	O
are	O
graphemes	O
and	O
grapheme-like	O
units	O
,	O
independent	O
of	O
how	O
they	O
manifest	O
in	O
computer	B-General_Concept
storage	I-General_Concept
systems	O
and	O
networks	O
.	O
</s>
<s>
An	O
HTML	B-Language
document	O
is	O
a	O
sequence	O
of	O
Unicode	O
characters	O
.	O
</s>
<s>
More	O
specifically	O
,	O
HTML	B-Language
4.0	I-Language
documents	O
are	O
required	O
to	O
consist	O
of	O
characters	O
in	O
the	O
HTML	B-Language
document	O
character	B-General_Concept
set	I-General_Concept
:	O
a	O
character	O
repertoire	O
wherein	O
each	O
character	O
is	O
assigned	O
a	O
unique	O
,	O
non-negative	O
integer	O
code	O
point	O
.	O
</s>
<s>
This	O
set	O
is	O
defined	O
in	O
the	O
HTML	B-Language
4.0	I-Language
DTD	B-Language
,	O
which	O
also	O
establishes	O
the	O
syntax	O
(	O
allowable	O
sequences	O
of	O
characters	O
)	O
that	O
can	O
produce	O
a	O
valid	O
HTML	B-Language
document	O
.	O
</s>
<s>
The	O
HTML	B-Language
document	O
character	B-General_Concept
set	I-General_Concept
for	O
HTML	B-Language
4.0	I-Language
consists	O
of	O
most	O
,	O
but	O
not	O
all	O
,	O
of	O
the	O
characters	O
jointly	O
defined	O
by	O
Unicode	O
and	O
ISO/IEC	O
10646	O
:	O
the	O
Universal	O
Character	B-General_Concept
Set	I-General_Concept
(	O
UCS	O
)	O
.	O
</s>
<s>
Like	O
HTML	B-Language
documents	O
,	O
an	O
XHTML	B-Language
document	O
is	O
a	O
sequence	O
of	O
Unicode	O
characters	O
.	O
</s>
<s>
However	O
,	O
an	O
XHTML	B-Language
document	O
is	O
an	O
XML	B-Protocol
document	I-Protocol
,	O
which	O
,	O
while	O
not	O
having	O
an	O
explicit	O
"	O
document	O
character	O
"	O
layer	O
of	O
abstraction	B-Application
,	O
nevertheless	O
relies	O
upon	O
a	O
similar	O
definition	O
of	O
permissible	O
characters	O
that	O
cover	O
most	O
,	O
but	O
not	O
all	O
,	O
of	O
the	O
Unicode/UCS	O
character	O
definitions	O
.	O
</s>
<s>
The	O
sets	O
used	O
by	O
HTML	B-Language
and	O
XHTML/XML	O
are	O
slightly	O
different	O
,	O
but	O
these	O
differences	O
have	O
little	O
effect	O
on	O
the	O
average	O
document	O
author	O
.	O
</s>
<s>
Regardless	O
of	O
whether	O
the	O
document	O
is	O
HTML	B-Language
or	O
XHTML	B-Language
,	O
when	O
stored	O
on	O
a	O
file	B-Application
system	I-Application
or	O
transmitted	O
over	O
a	O
network	B-Architecture
,	O
the	O
document	O
's	O
characters	O
are	O
encoded	O
as	O
a	O
sequence	O
of	O
bit	O
octets	O
(	O
bytes	B-Application
)	O
according	O
to	O
a	O
particular	O
character	B-General_Concept
encoding	I-General_Concept
.	O
</s>
<s>
However	O
,	O
even	O
when	O
using	O
encodings	O
that	O
do	O
not	O
support	O
all	O
Unicode	O
characters	O
,	O
the	O
encoded	O
document	O
may	O
make	O
use	O
of	O
numeric	B-General_Concept
character	I-General_Concept
references	I-General_Concept
.	O
</s>
<s>
For	O
example	O
,	O
☺	O
(	O
☺	O
)	O
is	O
used	O
to	O
indicate	O
a	O
smiling	O
face	O
character	O
in	O
the	O
Unicode	O
character	B-General_Concept
set	I-General_Concept
.	O
</s>
<s>
In	O
order	O
to	O
support	O
all	O
Unicode	O
characters	O
without	O
resorting	O
to	O
numeric	B-General_Concept
character	I-General_Concept
references	I-General_Concept
,	O
a	O
web	O
page	O
must	O
have	O
an	O
encoding	O
covering	O
all	O
of	O
Unicode	O
.	O
</s>
<s>
The	O
most	O
popular	O
is	O
UTF-8	O
,	O
where	O
the	O
ASCII	B-Protocol
characters	I-Protocol
,	O
such	O
as	O
English	O
letters	O
,	O
digits	O
,	O
and	O
some	O
other	O
common	O
characters	O
are	O
preserved	O
unchanged	O
against	O
ASCII	B-Protocol
.	O
</s>
<s>
This	O
makes	O
HTML	B-Language
code	I-Language
(	O
such	O
as	O
br>	O
and	O
/div	O
>	O
)	O
unchanged	O
compared	O
to	O
ASCII	B-Protocol
.	O
</s>
<s>
Characters	O
outside	O
the	O
ASCII	B-Protocol
range	O
are	O
stored	O
in	O
2	O
–	O
4	O
bytes	B-Application
.	O
</s>
<s>
It	O
is	O
also	O
possible	O
to	O
use	O
UTF-16	O
where	O
most	O
characters	O
are	O
stored	O
as	O
two	O
bytes	B-Application
with	O
varying	O
endianness	O
,	O
which	O
is	O
supported	O
by	O
modern	O
browsers	B-Application
but	O
less	O
commonly	O
used	O
.	O
</s>
<s>
In	O
order	O
to	O
work	O
around	O
the	O
limitations	O
of	O
legacy	O
encodings	O
,	O
HTML	B-Language
is	O
designed	O
such	O
that	O
it	O
is	O
possible	O
to	O
represent	O
characters	O
from	O
the	O
whole	O
of	O
Unicode	O
inside	O
an	O
HTML	B-Language
document	O
by	O
using	O
a	O
numeric	B-General_Concept
character	I-General_Concept
reference	I-General_Concept
:	O
a	O
sequence	O
of	O
characters	O
that	O
explicitly	O
spell	O
out	O
the	O
Unicode	O
code	O
point	O
of	O
the	O
character	O
being	O
represented	O
.	O
</s>
<s>
A	O
character	O
reference	O
takes	O
the	O
form	O
&	O
#N	O
;	O
,	O
where	O
N	O
is	O
either	O
a	O
decimal	B-Application
number	O
for	O
the	O
Unicode	O
code	O
point	O
,	O
or	O
a	O
hexadecimal	O
number	O
,	O
in	O
which	O
case	O
it	O
must	O
be	O
prefixed	O
by	O
x	O
.	O
</s>
<s>
The	O
characters	O
that	O
compose	O
the	O
numeric	B-General_Concept
character	I-General_Concept
reference	I-General_Concept
are	O
universally	O
representable	O
in	O
every	O
encoding	O
approved	O
for	O
use	O
on	O
the	O
Internet	O
.	O
</s>
<s>
The	O
support	O
for	O
hexadecimal	O
in	O
this	O
context	O
is	O
more	O
recent	O
,	O
so	O
older	O
browsers	B-Application
might	O
have	O
problems	O
displaying	O
characters	O
referenced	O
with	O
hexadecimal	O
numbers	O
but	O
they	O
will	O
probably	O
have	O
a	O
problem	O
displaying	O
Unicode	O
characters	O
above	O
code	O
point	O
255	O
anyway	O
.	O
</s>
<s>
To	O
ensure	O
better	O
compatibility	O
with	O
older	O
browsers	B-Application
,	O
it	O
is	O
still	O
a	O
common	O
practice	O
to	O
convert	O
the	O
hexadecimal	O
code	O
point	O
into	O
a	O
decimal	B-Application
value	O
(	O
for	O
example	O
合	O
instead	O
of	O
合	O
)	O
.	O
</s>
<s>
In	O
HTML	B-Language
4	O
,	O
there	O
is	O
a	O
standard	O
set	O
of	O
252	O
named	O
character	B-General_Concept
entities	I-General_Concept
for	O
characters	O
-	O
some	O
common	O
,	O
some	O
obscure	O
-	O
that	O
are	O
either	O
not	O
found	O
in	O
certain	O
character	B-General_Concept
encodings	I-General_Concept
or	O
are	O
markup	O
sensitive	O
in	O
some	O
contexts	O
(	O
for	O
example	O
angle	O
brackets	O
and	O
quotation	O
marks	O
)	O
.	O
</s>
<s>
Although	O
any	O
Unicode	O
character	O
can	O
be	O
referenced	O
by	O
its	O
numeric	O
code	O
point	O
,	O
some	O
HTML	B-Language
document	O
authors	O
prefer	O
to	O
use	O
these	O
named	O
entities	O
instead	O
,	O
where	O
possible	O
,	O
as	O
they	O
are	O
less	O
cryptic	O
and	O
were	O
better	O
supported	O
by	O
early	O
browsers	B-Application
.	O
</s>
<s>
Character	B-General_Concept
entities	I-General_Concept
can	O
be	O
included	O
in	O
an	O
HTML	B-Language
document	O
via	O
the	O
use	O
of	O
entity	O
references	O
,	O
which	O
take	O
the	O
form	O
&	O
EntityName	O
;	O
,	O
where	O
EntityName	O
is	O
the	O
name	O
of	O
the	O
entity	O
.	O
</s>
<s>
For	O
example	O
,	O
—	O
,	O
much	O
like	O
—	O
or	O
—	O
,	O
represents	O
:	O
the	O
em	O
dash	O
character	O
""	O
even	O
if	O
the	O
character	B-General_Concept
encoding	I-General_Concept
used	O
does	O
n't	O
contain	O
that	O
character	O
.	O
</s>
<s>
For	O
the	O
full	O
list	O
,	O
see	O
:	O
List	B-General_Concept
of	I-General_Concept
XML	I-General_Concept
and	I-General_Concept
HTML	I-General_Concept
character	I-General_Concept
entity	I-General_Concept
references	I-General_Concept
.	O
</s>
<s>
In	O
order	O
to	O
correctly	O
process	O
HTML	B-Language
,	O
a	O
web	B-Application
browser	I-Application
must	O
ascertain	O
which	O
Unicode	O
characters	O
are	O
represented	O
by	O
the	O
encoded	O
form	O
of	O
an	O
HTML	B-Language
document	O
.	O
</s>
<s>
In	O
order	O
to	O
do	O
this	O
,	O
the	O
web	B-Application
browser	I-Application
must	O
know	O
what	O
encoding	O
was	O
used	O
.	O
</s>
<s>
When	O
a	O
document	O
is	O
transmitted	O
via	O
a	O
MIME	B-Protocol
message	O
or	O
a	O
transport	O
that	O
uses	O
MIME	B-Protocol
content	O
types	O
such	O
as	O
an	O
HTTP	B-Protocol
response	O
,	O
the	O
message	O
may	O
signal	O
the	O
encoding	O
via	O
a	O
Content-Type	O
header	O
,	O
such	O
as	O
Content-Type	O
:	O
text/html	B-Language
;	O
charset	B-General_Concept
=	O
UTF-8	O
.	O
</s>
<s>
If	O
the	O
document	O
uses	O
a	O
Unicode	O
encoding	O
,	O
the	O
encoding	O
info	O
might	O
also	O
be	O
present	O
in	O
the	O
form	O
of	O
a	O
byte	B-Application
order	O
mark	O
(	O
BOM	O
)	O
.	O
</s>
<s>
Finally	O
,	O
the	O
encoding	O
can	O
be	O
declared	O
via	O
the	O
HTML	B-Language
syntax	I-Language
.	O
</s>
<s>
For	O
the	O
text/html	B-Language
serialisation	O
then	O
,	O
as	O
long	O
as	O
the	O
page	O
is	O
encoded	O
in	O
an	O
extension	O
of	O
ASCII	B-Protocol
(	O
such	O
as	O
UTF-8	O
,	O
and	O
thus	O
,	O
not	O
if	O
the	O
page	O
is	O
using	O
UTF-16	O
)	O
,	O
a	O
meta	O
element	O
,	O
like	O
<meta http-equiv="content-type" content="text/html; charset=UTF-8"> or (starting with HTML5 )  <meta charset="UTF-8">	O
can	O
be	O
used	O
.	O
</s>
<s>
For	O
HTML	B-Language
pages	O
serialized	O
as	O
XML	B-Protocol
,	O
then	O
declaration	O
options	O
is	O
to	O
either	O
rely	O
on	O
the	O
encoding	O
default	O
(	O
which	O
for	O
XML	B-Protocol
documents	I-Protocol
is	O
UTF-8	O
)	O
,	O
or	O
to	O
use	O
an	O
XML	B-Protocol
encoding	O
declaration	O
.	O
</s>
<s>
The	O
meta	O
attribute	O
plays	O
no	O
role	O
in	O
HTML	B-Language
served	O
as	O
XML	B-Protocol
.	O
</s>
<s>
An	O
encoding	O
default	O
applies	O
when	O
there	O
is	O
no	O
external	O
or	O
internal	O
encoding	O
declaration	O
and	O
also	O
no	O
byte	B-Application
order	O
mark	O
.	O
</s>
<s>
While	O
the	O
encoding	O
default	O
for	O
HTML	B-Language
pages	O
served	O
as	O
XML	B-Protocol
is	O
required	O
to	O
be	O
UTF-8	O
,	O
the	O
encoding	O
default	O
for	O
a	O
regular	O
Web	O
page	O
(	O
that	O
is	O
:	O
for	O
HTML	B-Language
pages	O
serialized	O
as	O
text/html	B-Language
)	O
varies	O
depending	O
on	O
the	O
localization	O
of	O
the	O
browser	B-Application
.	O
</s>
<s>
For	O
a	O
browser	B-Application
from	O
a	O
location	O
where	O
legacy	O
multi-byte	O
character	B-General_Concept
encodings	I-General_Concept
are	O
prevalent	O
,	O
some	O
form	O
of	O
auto-detection	O
is	O
likely	O
to	O
be	O
applied	O
.	O
</s>
<s>
Because	O
of	O
the	O
legacy	O
of	O
8-bit	O
text	O
representations	O
in	O
programming	O
languages	O
and	O
operating	B-General_Concept
systems	I-General_Concept
and	O
the	O
desire	O
to	O
avoid	O
burdening	O
users	O
with	O
the	O
need	O
to	O
understand	O
the	O
nuances	O
of	O
encoding	O
,	O
many	O
text	O
editors	O
used	O
by	O
HTML	B-Language
authors	O
are	O
unable	O
or	O
unwilling	O
to	O
offer	O
a	O
choice	O
of	O
encodings	O
when	O
saving	O
files	O
to	O
disk	O
and	O
often	O
do	O
not	O
even	O
allow	O
input	O
of	O
characters	O
beyond	O
a	O
very	O
limited	O
range	O
.	O
</s>
<s>
Consequently	O
,	O
many	O
HTML	B-Language
authors	O
are	O
unaware	O
of	O
encoding	O
issues	O
and	O
may	O
not	O
have	O
any	O
idea	O
what	O
encoding	O
their	O
documents	O
actually	O
use	O
.	O
</s>
<s>
Another	O
factor	O
contributing	O
in	O
the	O
same	O
direction	O
,	O
is	O
the	O
arrival	O
of	O
UTF-8	O
which	O
greatly	O
diminishes	O
the	O
need	O
for	O
other	O
encodings	O
,	O
and	O
thus	O
modern	O
editors	O
tends	O
to	O
default	O
,	O
as	O
recommended	O
by	O
the	O
HTML5	B-Application
specification	O
,	O
to	O
UTF-8	O
.	O
</s>
<s>
For	O
both	O
serializations	O
of	O
HTML	B-Language
(	O
content-type	O
"	O
text/html	B-Language
"	O
and	O
content/type	O
"	O
application/xhtml	O
+xml	O
"	O
)	O
,	O
the	O
byte	B-Application
order	O
mark	O
(	O
BOM	O
)	O
is	O
an	O
effective	O
way	O
to	O
transmit	O
encoding	O
information	O
within	O
an	O
HTML	B-Language
document	O
.	O
</s>
<s>
Processing	O
applications	O
need	O
only	O
look	O
for	O
an	O
initial	O
0x0000FEFF	O
,	O
0xFEFF	O
or	O
0xEFBBBF	O
in	O
the	O
byte	B-Application
stream	O
to	O
identify	O
the	O
document	O
as	O
UTF-32	O
,	O
UTF-16	O
or	O
UTF-8	O
encoded	O
respectively	O
.	O
</s>
<s>
No	O
additional	O
metadata	O
mechanisms	O
are	O
required	O
for	O
these	O
encodings	O
since	O
the	O
byte-order	O
mark	O
includes	O
all	O
of	O
the	O
information	O
necessary	O
for	O
processing	O
applications	O
.	O
</s>
<s>
In	O
most	O
circumstances	O
,	O
the	O
byte-order	O
mark	O
character	O
is	O
handled	O
by	O
editing	O
applications	O
separately	O
from	O
the	O
other	O
characters	O
so	O
there	O
is	O
little	O
risk	O
of	O
an	O
author	O
removing	O
or	O
otherwise	O
changing	O
the	O
byte	B-Application
order	O
mark	O
to	O
indicate	O
the	O
wrong	O
encoding	O
(	O
as	O
can	O
happen	O
when	O
the	O
encoding	O
is	O
declared	O
in	O
English/Latin	O
script	O
)	O
.	O
</s>
<s>
If	O
the	O
document	O
lacks	O
a	O
byte-order	O
mark	O
,	O
the	O
fact	O
that	O
the	O
first	O
non-blank	O
printable	O
character	O
in	O
an	O
HTML	B-Language
document	O
is	O
supposed	O
to	O
be	O
"	O
<	O
"	O
(	O
U+003C	O
)	O
can	O
be	O
used	O
to	O
determine	O
a	O
UTF-8/UTF-16/UTF	O
-32	O
encoding	O
.	O
</s>
<s>
Many	O
HTML	B-Language
documents	O
are	O
served	O
with	O
inaccurate	O
encoding	O
information	O
,	O
or	O
no	O
encoding	O
information	O
at	O
all	O
.	O
</s>
<s>
In	O
order	O
to	O
determine	O
the	O
encoding	O
in	O
such	O
cases	O
,	O
many	O
browsers	B-Application
allow	O
the	O
user	O
to	O
manually	O
select	O
an	O
encoding	O
name	O
from	O
a	O
list	O
.	O
</s>
<s>
They	O
may	O
also	O
employ	O
an	O
encoding	O
auto-detection	O
algorithm	O
that	O
works	O
in	O
concert	O
with	O
or	O
in	O
the	O
case	O
of	O
the	O
BOM	O
and	O
in	O
case	O
of	O
HTML	B-Language
served	O
as	O
XML	B-Protocol
against	O
the	O
manual	O
override	O
.	O
</s>
<s>
For	O
HTML	B-Language
documents	O
which	O
are	O
text/html	B-Language
serialized	O
,	O
manual	O
override	O
may	O
apply	O
to	O
all	O
documents	O
,	O
or	O
only	O
those	O
for	O
which	O
the	O
encoding	O
cannot	O
be	O
ascertained	O
by	O
looking	O
at	O
declarations	O
and/or	O
byte	B-Application
patterns	O
.	O
</s>
<s>
But	O
note	O
that	O
Internet	B-Application
Explorer	I-Application
,	O
Chrome	O
and	O
Safari	B-Application
for	O
both	O
XML	B-Protocol
and	O
text/html	B-Language
serializations	O
do	O
not	O
permit	O
the	O
encoding	O
to	O
be	O
overridden	O
whenever	O
the	O
page	O
includes	O
the	O
BOM	O
.	O
</s>
<s>
For	O
HTML	B-Language
documents	O
serialized	O
with	O
the	O
preferred	O
XML	B-Protocol
label	O
application/xhtml	O
+xml	O
,	O
manual	O
encoding	O
override	O
is	O
not	O
permitted	O
.	O
</s>
<s>
To	O
override	O
the	O
encoding	O
of	O
such	O
an	O
XML	B-Protocol
document	I-Protocol
would	O
mean	O
that	O
the	O
document	O
stopped	O
being	O
XML	B-Protocol
,	O
as	O
it	O
is	O
a	O
fatal	O
error	O
for	O
XML	B-Protocol
documents	I-Protocol
to	O
have	O
an	O
encoding	O
declaration	O
with	O
detectable	O
errors	O
.	O
</s>
<s>
Currently	O
,	O
Gecko	O
browsers	B-Application
such	O
as	O
Firefox	B-Application
,	O
abide	O
to	O
this	O
rule	O
,	O
whereas	O
the	O
bulk	O
of	O
the	O
other	O
common	O
browsers	B-Application
that	O
support	O
HTML	B-Language
as	O
XML	B-Protocol
,	O
such	O
as	O
Webkit	O
browsers	B-Application
(	O
Chrome/Safari	O
)	O
do	O
allow	O
the	O
encoding	O
of	O
XHTML	B-Language
documents	O
to	O
be	O
manually	O
overridden	O
.	O
</s>
<s>
Many	O
browsers	B-Application
are	O
only	O
capable	O
of	O
displaying	O
a	O
small	O
subset	O
of	O
the	O
full	O
Unicode	O
repertoire	O
.	O
</s>
<s>
Here	O
is	O
how	O
your	O
browser	B-Application
displays	O
various	O
Unicode	O
code	O
points	O
:	O
</s>
<s>
+Example	O
web	B-Application
browser	I-Application
support	O
for	O
Unicode	O
charactersCharacterHTML	O
char	O
refUnicode	O
nameWhat	O
your	O
browser	B-Application
displays	O
U+0041	O
A	O
or	O
A	O
Latin	O
capital	O
letter	O
A	O
A	O
U+00DF	O
ß	O
or	O
ß	O
Latin	O
small	O
letter	O
Sharp	O
S	O
ß	O
U+00FE	O
þ	O
or	O
þ	O
Latin	O
small	O
letter	O
Thorn	O
þ	O
U+0394	O
Δ	O
or	O
Δ	O
Greek	O
capital	O
letter	O
Delta	O
Δ	O
U+017D	O
Ž	O
or	O
Ž	O
Latin	O
capital	O
letter	O
Z	O
with	O
háček	O
Ž	O
U+0419	O
Й	O
or	O
Й	O
Cyrillic	O
capital	O
letter	O
Short	O
I	O
Й	O
U+05E7	O
ק	O
or	O
ק	O
Hebrew	O
letter	O
Qof	O
ק	O
U+0645	O
م	O
or	O
م	O
Arabic	O
letter	O
Meem	O
م	O
U+0E57	O
๗	O
or	O
๗	O
Thai	O
digit	O
7	O
๗	O
U+1250	O
ቐ	O
or	O
ቐ	O
Ge'ez	O
syllable	B-General_Concept
Qha	O
ቐ	O
U+3042	O
あ	O
or	O
あ	O
Hiragana	O
letter	O
A	O
(	O
Japanese	O
)	O
あ	O
U+53F6	O
叶	O
or	O
叶	O
CJK	O
Unified	O
Ideograph-53F6	O
(	O
Simplified	O
Chinese	O
"	O
Leaf	O
"	O
)	O
叶	O
U+8449	O
葉	O
or	O
葉	O
CJK	O
Unified	O
Ideograph-8449	O
(	O
Traditional	O
Chinese	O
"	O
Leaf	O
"	O
)	O
葉	O
U+B5AB	O
떫	O
or	O
떫	O
Hangul	B-Operating_System
syllable	B-General_Concept
Tteolp	O
(	O
Korean	O
"	O
Ssangtikeut	O
Eo	O
Rieulbieup	O
"	O
)	O
떫	O
U+16A0	O
ᚠ	O
or	O
ᚠ	O
Runic	O
letter	O
Fehu	O
ᚠ	O
U+0D37	O
ഷ	O
or	O
ഷ	O
Malayalam	O
letter	O
ഷ	O
( ṣha	O
)	O
ഷ	O
U+1F602	O
😂	O
or	O
😂	O
Face	O
with	O
Tears	O
of	O
Joy	O
emoji	O
😂	O
To	O
display	O
all	O
of	O
the	O
characters	O
above	O
,	O
you	O
may	O
need	O
to	O
install	O
one	O
or	O
more	O
large	O
multilingual	O
fonts	O
,	O
like	O
Code2000	O
.	O
</s>
<s>
Some	O
web	B-Application
browsers	I-Application
,	O
such	O
as	O
Mozilla	B-Application
Firefox	I-Application
,	O
Opera	B-Application
,	O
Safari	B-Application
and	O
Internet	B-Application
Explorer	I-Application
(	O
from	O
version	O
7	O
on	O
)	O
,	O
are	O
able	O
to	O
display	O
multilingual	O
web	O
pages	O
by	O
intelligently	O
choosing	O
a	O
font	O
to	O
display	O
each	O
individual	O
character	O
on	O
the	O
page	O
.	O
</s>
<s>
They	O
will	O
correctly	O
display	O
any	O
mix	O
of	O
Unicode	O
blocks	O
,	O
as	O
long	O
as	O
appropriate	O
fonts	O
are	O
present	O
in	O
the	O
operating	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
Older	O
browsers	B-Application
,	O
such	O
as	O
Netscape	B-Protocol
Navigator	I-Protocol
4.77	O
and	O
Internet	B-Application
Explorer	I-Application
6	I-Application
,	O
can	O
only	O
display	O
text	O
supported	O
by	O
the	O
current	O
font	O
associated	O
with	O
the	O
character	B-General_Concept
encoding	I-General_Concept
of	O
the	O
page	O
,	O
and	O
may	O
misinterpret	O
numeric	B-General_Concept
character	I-General_Concept
references	I-General_Concept
as	O
being	O
references	O
to	O
code	O
values	O
within	O
the	O
current	O
character	B-General_Concept
encoding	I-General_Concept
,	O
rather	O
than	O
references	O
to	O
Unicode	O
code	O
points	O
.	O
</s>
<s>
When	O
you	O
are	O
using	O
such	O
a	O
browser	B-Application
,	O
it	O
is	O
unlikely	O
that	O
your	O
computer	O
has	O
all	O
of	O
those	O
fonts	O
,	O
or	O
that	O
the	O
browser	B-Application
can	O
use	O
all	O
available	O
fonts	O
on	O
the	O
same	O
page	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
the	O
browser	B-Application
will	O
not	O
display	O
the	O
text	O
in	O
the	O
examples	O
above	O
correctly	O
,	O
though	O
it	O
may	O
display	O
a	O
subset	O
of	O
them	O
.	O
</s>
<s>
According	O
to	O
internal	O
data	O
from	O
Google	B-Application
's	I-Application
web	O
index	O
,	O
in	O
December	O
2007	O
the	O
UTF-8	O
Unicode	O
encoding	O
became	O
the	O
most	O
frequently	O
used	O
encoding	O
on	O
web	O
pages	O
,	O
overtaking	O
both	O
ASCII	B-Protocol
(	O
US	O
)	O
and	O
8859-1/1252	O
(	O
Western	O
European	O
)	O
.	O
</s>
