<s>
A	O
reset	O
stylesheet	O
(	O
or	O
CSS	O
reset	O
)	O
is	O
a	O
collection	O
of	O
CSS	O
rules	O
used	O
to	O
clear	O
the	O
browser	B-Application
's	O
default	B-General_Concept
formatting	O
of	O
HTML	B-Language
elements	O
,	O
removing	O
potential	O
inconsistencies	O
between	O
different	O
browsers	B-Application
.	O
</s>
<s>
It	O
also	O
prevents	O
developers	O
from	O
unknowingly	O
relying	O
on	O
the	O
browser	B-Application
default	B-General_Concept
styling	O
and	O
force	O
them	O
to	O
be	O
explicit	O
about	O
the	O
styling	O
they	O
want	O
to	O
apply	O
on	O
the	O
page	O
.	O
</s>
<s>
Each	O
browser	B-Application
has	O
different	O
default	B-General_Concept
settings	O
for	O
styling	O
different	O
HTML	B-Language
elements	O
,	O
often	O
differing	O
from	O
the	O
World	O
Wide	O
Web	O
Consortium	O
recommendations	O
for	O
styling	O
elements	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
color	O
for	O
link	O
text	O
and	O
spacing	O
definitions	O
for	O
specific	O
items	O
are	O
defined	O
differently	O
by	O
many	O
browsers	B-Application
by	O
default	B-General_Concept
.	O
</s>
<s>
These	O
basic	O
details	O
may	O
vary	O
greatly	O
from	O
browser	B-Application
to	O
browser	B-Application
,	O
sometimes	O
even	O
varying	O
between	O
different	O
versions	O
of	O
a	O
browser	B-Application
.	O
</s>
<s>
These	O
default	B-General_Concept
styles	O
used	O
in	O
combination	O
with	O
the	O
author	O
defined	O
rules	O
may	O
have	O
unforeseen	O
effects	O
on	O
the	O
appearance	O
of	O
the	O
website	O
.	O
</s>
<s>
With	O
the	O
help	O
of	O
a	O
style	O
sheet	O
reset	O
,	O
these	O
browser	B-Application
styles	O
can	O
be	O
removed	O
.	O
</s>
<s>
The	O
styles	O
used	O
by	O
the	O
developer	O
are	O
ideally	O
interpreted	O
consistently	O
by	O
all	O
browsers	B-Application
.	O
</s>
<s>
However	O
,	O
the	O
first	O
reset	B-General_Concept
style	I-General_Concept
sheet	I-General_Concept
,	O
created	O
in	O
2004	O
by	O
Tantek	O
Çelik	O
,	O
included	O
additional	O
features	O
such	O
as	O
setting	O
all	O
font	O
sizes	O
to	O
1em	O
and	O
removing	O
link	O
underlines	O
and	O
borders	O
.	O
</s>
<s>
A	O
previously	O
well-known	O
CSS	O
reset	O
is	O
part	O
of	O
the	O
Yahoo	B-Application
User	O
Interface	O
Library	O
(	O
YUI	B-Language
Library	I-Language
)	O
.	O
</s>
<s>
Many	O
CSS	O
resets	O
remove	O
any	O
formatting	O
of	O
an	O
HTML	B-Language
element	O
.	O
</s>
<s>
The	O
developer	O
therefore	O
has	O
to	O
reintroduce	O
some	O
removed	O
formatting	O
for	O
the	O
HTML	B-Language
tags	O
they	O
wish	O
to	O
use	O
in	O
a	O
webpage	O
.	O
</s>
<s>
A	O
CSS	O
reset	O
is	O
a	O
different	O
concept	O
from	O
a	O
CSS	B-General_Concept
framework	I-General_Concept
.	O
</s>
<s>
A	O
reset	B-General_Concept
style	I-General_Concept
sheet	I-General_Concept
is	O
only	O
used	O
to	O
reset	O
basic	O
formatting	O
.	O
</s>
<s>
In	O
contrast	O
,	O
a	O
CSS	B-General_Concept
framework	I-General_Concept
,	O
which	O
typically	O
include	O
pre-made	O
style	O
definitions	O
for	O
often-needed	O
UI	O
elements	O
or	O
a	O
grid	O
system	O
,	O
is	O
used	O
to	O
speed	O
up	O
the	O
development	O
process	O
of	O
a	O
website	O
.	O
</s>
<s>
However	O
,	O
a	O
CSS	O
reset	O
is	O
often	O
part	O
of	O
a	O
CSS	B-General_Concept
framework	I-General_Concept
.	O
</s>
