Style bottom property

Definition and Usage

bottom Sets or returns the bottom position of a located element.

Tip:A located element refers to an element with the position property set to: relative, absolute, or fixed.

Tip:To set or return the top position of a located element, use the top property.

See also:

CSS Tutorial:CSS Positioning

CSS Reference Manual:bottom property

Example

Example 1

Set the bottom position of the <button> element:

document.getElementById("myBtn").style.bottom = "100px";

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Example 2

Set the bottom position of the <div> element:

document.getElementById("myDiv").style.bottom = "10px";

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Example 3

Use negative values - set the bottom position of the <div> element:

document.getElementById("myDiv").style.bottom = "-100px";

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Example 4

Returns the bottom position of the <div> element:

alert(document.getElementById("myDiv").style.bottom);

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Syntax

Return bottom property:

object.style.bottom

Set bottom property:

object.style.bottom = "auto|length|%|initial|inherit"

Attribute value

Value Description
auto Let the browser set the bottom position. Default.
length Defines the bottom position with a length unit. Negative values are allowed.
% Sets the bottom position with a percentage of the parent element's height.
initial Sets this property to its default value. See also initial.
inherit Inherits this property from its parent element. See also inherit.

Technical details

Default value: auto
Return value: A string that represents the bottom position of the located element.
CSS Version: CSS2

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
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