<s>
A	O
table	B-General_Concept
cell	I-General_Concept
is	O
one	O
grouping	O
within	O
a	O
chart	O
table	B-Application
used	O
for	O
storing	O
information	O
or	O
data	O
.	O
</s>
<s>
In	O
software	O
design	O
,	O
table	B-General_Concept
cells	I-General_Concept
are	O
a	O
key	O
component	O
in	O
HTML	B-Language
and	O
webpage	O
building	O
,	O
and	O
it	O
is	O
part	O
of	O
the	O
<table>	O
component	O
.	O
</s>
<s>
A	O
coder	O
may	O
specify	O
dimensions	O
for	O
a	O
table	B-General_Concept
cell	I-General_Concept
,	O
and	O
use	O
them	O
to	O
hold	O
sections	O
of	O
webpages	O
.	O
</s>
<s>
A	O
table	B-General_Concept
cell	I-General_Concept
in	O
HTML	B-Language
is	O
a	O
non-empty	O
element	O
and	O
should	O
always	O
be	O
closed	O
.	O
</s>
<s>
There	O
are	O
two	O
different	O
kinds	O
of	O
table	B-General_Concept
cell	I-General_Concept
in	O
HTML	B-Language
:	O
normal	O
table	B-General_Concept
cell	I-General_Concept
and	O
header	O
cell	O
.	O
</s>
<s>
<td> denotes a table cell, the name implying 'data', while <th>	O
denotes	O
a	O
table	B-Application
'	O
header	O
 '	O
.	O
</s>
<s>
The	O
two	O
can	O
be	O
used	O
interchangeably	O
,	O
but	O
it	O
is	O
recommended	O
that	O
header	O
cell	O
be	O
only	O
used	O
for	O
the	O
top	O
and	O
side	O
headers	O
of	O
a	O
table	B-Application
.	O
</s>
<s>
A	O
table	B-General_Concept
cell	I-General_Concept
also	O
must	O
be	O
nested	O
within	O
a	O
<table> tag and a <tr>	O
(	O
table	B-Application
row	O
)	O
tag	B-General_Concept
.	O
</s>
<s>
If	O
there	O
are	O
more	O
table	B-General_Concept
cell	I-General_Concept
tags	B-General_Concept
in	O
any	O
given	O
row	O
than	O
in	O
any	O
other	O
,	O
the	O
particular	O
<tr>	O
must	O
be	O
given	O
a	O
attribute	O
declaring	O
how	O
many	O
columns	O
of	O
cells	O
wide	O
it	O
should	O
be	O
.	O
</s>
<s>
An	O
example	O
of	O
an	O
HTML	B-General_Concept
table	I-General_Concept
containing	O
4	O
cells	O
:	O
</s>
<s>
HTML	B-Language
source	O
:	O
</s>
<s>
Every	O
row	O
must	O
have	O
the	O
same	O
number	O
of	O
table	B-Application
data	O
cells	O
,	O
occasionally	O
table	B-Application
data	O
cells	O
have	O
to	O
span	O
more	O
than	O
one	O
column	O
or	O
row	O
.	O
</s>
<s>
In	O
this	O
case	O
the	O
tags	B-General_Concept
colspan	O
and/or	O
rowspan	O
are	O
used	O
-	O
where	O
they	O
are	O
set	O
to	O
a	O
number	O
.	O
</s>
<s>
<--	O
This	O
row	O
has	O
three	O
table	B-Application
data	O
cells	O
<--	O
This	O
row	O
has	O
two	O
.	O
</s>
