Style marginBottom property

Definition and Usage

marginBottom property sets or returns the bottom outer margin of the element.

margin property and padding property All insert space around the element. However, the difference is that margin inserts space around the border, while padding inserts space inside the element's border.

See also:

CSS Tutorial:CSS Margin

CSS Reference Manual:margin-bottom property

HTML DOM Reference Manual:margin property

Instance

Example 1

Set the bottom outer margin of the <div> element:

document.getElementById("myDiv").style.marginBottom = "50px";

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Example 2

Reset the bottom outer margin of the <div> element to "normal":

document.getElementById("myDiv").style.marginBottom = "0px";

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Example 3

Returns the bottom outer margin of the <div> element:

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

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Example 4

Difference between marginBottom and paddingBottom:

function changeMargin() {
  document.getElementById("myDiv").style.marginBottom = "100px";
}
function changePadding() {
  document.getElementById("myDiv2").style.paddingBottom = "100px";
}

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Syntax

Return marginBottom property:

object.style.marginBottom

Set marginBottom property:

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

Property Value

Value Description
% Defines the bottom outer margin as a percentage of the parent element's width.
length Defines the bottom outer margin with a length unit.
auto browser settings for the bottom outer margin.
initial Sets this property to its default value. See initial.
inherit Inherits this property from its parent element. See inherit.

Technical Details

Default value: 0
Return value: A string representing the element's bottom outer margin.
CSS Version: CSS1

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
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