HTML and CSS Reference
In-Depth Information
Name
bottom
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 description; for
static
elements,
auto
; for length val-
ues, the corresponding absolute length; for percentage values, the declared value; otherwise,
auto
Description:
Defines the offset between the bottom outer margin edge of a positioned element and the bot-
tom edge of its containing block. For relatively positioned elements, if both
bottom
and
top
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
will become the negative of the value of
top
.
Examples:
div#footer {position: fixed; bottom: 0;}
sup {position: relative; bottom: 0.5em;
vertical-align: baseline;}
