Style marginLeft 属性

Definition and Usage

marginLeft property sets or returns the left outer margin of an 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-left Property

HTML DOM Reference Manual:Margin Property

Example 1

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

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

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Example 2

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

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

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Example 3

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

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

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Example 4

Difference between marginLeft and paddingLeft:

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

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Syntax

Return marginLeft property:

object.style.marginLeft

Set marginLeft property:

object.style.marginLeft = "%|length|auto|inherit"

Property Value

Value Description
% Define the left outer margin as a percentage of the parent element's width.
length Define the left outer margin with a length unit.
auto Browser sets the left 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 that represents the left outer margin of an element.
CSS Version: CSS1

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
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