HTML and CSS Reference
In-Depth Information
Name
top
Values:
<length> | <percentage> |
auto
Initial value:
auto
Applies to:
Positioned elements (that is, elements for which the value of
position
is something other
than
static
)
Inherited:
No
Percentages:
Refer to the height of the containing block
Computed value:
For relatively positioned elements, see note; for
static
elements,
auto
; for length values, the
corresponding absolute length; for percentage values, the declared value; otherwise,
auto
Description:
Defines the offset between the top outer margin edge of a positioned element and the top edge
of its containing block.
Note:
For relatively positioned elements, if both
top
and
bottom
are
auto
, their computed values
are both
0
; if one of them is
auto
, it becomes the negative of the other; if neither is
auto
,
bottom
becomes the negative of the value of
top
.
