Style marginLeftProperty

Style 对象参考手册Style Object

Definition and Usage

The marginLeft property sets or returns the left margin of an element.

Syntax

Set the marginLeft property:

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

Return the marginLeft property:

Object.style.marginLeft

Value Description
% Defines the left margin as a percentage based on the width of the parent element.
length Defines the width of the left margin using units such as px, cm, etc.
auto The left margin set by the browser.
inherit The left margin is inherited from the parent element.


Browser Support

Internet ExplorerFirefoxOperaGoogle ChromeSafari

All major browsers support the marginLeft property.

Note:IE7 and earlier versions do not support the "inherit" value. IE8 supports "inherit" only if a !DOCTYPE is specified. IE9 supports "inherit".


Tips and Notes

The margin and padding properties both insert space around an element. However, the difference is that margin inserts space around the outside of the border, while padding inserts space inside the element's border.


Example

Example

Change the left margin of a div element:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Example Tutorial (example.com)</title>
<style type="text/css">
div{
    border: 1px solid #FF0000;
}
</style>
<script>
function changeMargin(){
    document.getElementById("ex1").style.marginLeft="100px";
}
function changePadding(){
    document.getElementById("ex2").style.paddingLeft="100px";
}
</script>
</head>
<body>

<div id="ex1">This is some text.</div>
<br>
<button type="button" onclick="changeMargin()">Change the left margin of the div element</button>
<br>
<br>
<div id="ex2">This is some text.</div>
<br>
<button type="button" onclick="changePadding()">Change the left padding of the div element</button>

</body>
</html>

Try it Yourself »


Style 对象参考手册Style Object Other Extensions