CSS bottom Property
Example
.absolute {
position: absolute;
bottom: 0;
left: 0;
}
.fixed {
position: fixed;
bottom: 0;
right: 0;
}
Meaning
The bottom CSS property participates in setting the vertical position of a positioned element. It has no effect on non-positioned elements.
1: position: absolute; or position: fixed; - the bottom property sets the bottom edge of an element to a unit above/below the bottom edge of its nearest positioned ancestor.
2: position: relative; - the bottom property makes the element's bottom edge to move above/below its normal position.
3: position: sticky; - the bottom property behaves like its position is relative when the element is inside the viewport, and like its position is fixed when it is outside.
4: position: static; - the bottom property has no effect.
Default value: | auto |
Inherited: | No |
Animatable: | yes |
Version: | CSS2 |
JavaScript syntax: |
|
Standard Syntax
bottom: auto|length|initial|inherit|revert|revert-layer|unset;
Browser Support
The numbers in the table specify the first browser version that fully supports the property.
Status
Property Values
The following table describes the values of this property.
Value | Description |
---|---|
auto | This is default. The browser calculate the bottom edge position. |
length | Specifies the bottom edge position in px, cm, etc. Negative values are allowed. |
%(percentage) | Specifies the bottom edge position in %(percentage) of containing element. Negative values are allowed. |
initial | Sets this property to its default value. |
inherit | If specified, the associated element takes the computed value of its parent element animation-delay property. |
revert | Reverts the cascaded value of the property from its current value to the value the property |
revert-layer | Rollback styles to the ones specified in previous cascade layers. |
unset | Resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not. |
Default CSS Property Values
selectors {
bottom: auto;
}