CSS bottom Property
Topic: CSS3 Properties ReferencePrev|Next
Description
This bottom CSS property specify an offset for the bottom edge of the positioned element, relative to the bottom of reference element's box or browser window.
- For absolutely positioned elements, the
bottomproperty specifies how far the bottom edge of the element's box is offset above the bottom edge of its containing block. - For relatively positioned elements, the
bottomproperty specifies the offset with respect to the bottom edge of the box itself (i.e., the box is given a position in the normal flow, and then offset from that position according to these properties).
The following table summarizes the usages context and the version history of this property.
| Default value: | auto |
|---|---|
| Applies to: | Positioned elements |
| Inherited: | No |
| Animatable: | Yes. See animatable properties. |
| Version: | CSS 2, 3 |
Syntax
The syntax of the property is given with:
The example below shows the bottom property in action.
Example
Try this code »p {
position: absolute;
bottom: 150px;
}
Property Values
The following table describes the values of this property.
| Value | Description |
|---|---|
| length | Specifies the offset as a length value in px, pt, cm, em, etc. Negative length values are allowed. |
| percentage | Specifies the offset in percentage. The percentage is calculated with respect to the height of the element's containing block. Negative percentage values are allowed. |
auto |
The browser calculates the bottom edge position. This is default value. |
initial |
Sets this property to its default value. |
inherit |
If specified, the associated element takes the computed value of its parent element bottom property. |
Browser Compatibility
The bottom property is supported in all major modern browsers.
Basic Support—
|
Further Reading
See tutorial on: CSS Position, CSS Layers.
Related properties: position, top, right, left, z-index.

