Atrybut marginBottom

Definition and usage

marginBottom properties set or return the bottom 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:Marginesy CSS

CSS Reference Manual:margin-bottom property

HTML DOM Reference Manual:margin property

Instance

Example 1

Set the bottom margin of the <div> element:

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

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Example 2

Change the bottom margin of the <div> element back to "normal":

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

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Example 3

Return the bottom 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"

Attribute value

Value Description
% Defines the bottom margin as a percentage of the parent element's width.
length Defines the bottom margin with a length unit.
auto browser settings for the bottom 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 that represents the element's bottom margin.
CSS version: CSS1

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