margin-left
CSS margin-left Property
The margin-left property is used to define how much the left margin of the element will be set.
There are some rare situations when width, margin-left, border, padding, the content area and margin-right are defined. When it happens, the margin-left will be ignored and it will be set as if the auto value is defined.
The margin-left property is defined as the keyword <auto>, <percentage> or a <length>. Its value may be negative, positive or zero.
Negative values are allowed.
| 类目 | 类目 |
|---|---|
| Initial Value | 0 |
| Applies to | All elements. It also applies to ::first-letter. |
| Inherited | No. |
| Animatable | Yes. Left margin of the element is animatable. |
| Version | CSS2 |
| DOM Syntax | object.style.marginLeft = “20px”; |
Syntax
Syntax
margin-left: length | auto | initial | inherit;
Example of the margin-left property defined as “px”:
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
.left {
margin-left: 25px;
}
</style>
</head>
<body>
<h2>Margin-left property example</h2>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry.</p>
<p class="left">Lorem Ipsum is simply dummy text of the printing and typesetting industry.</p>
</body>
</html>
Result
Example of the margin-left property defined as “em”:
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
.left {
margin-left: 8em;
}
</style>
</head>
<body>
<h2>Margin-left property example</h2>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry.</p>
<p class="left">Lorem Ipsum is simply dummy text of the printing and typesetting industry.</p>
</body>
</html>
Example of the margin-left property defined as “px”, “em” and “%”:
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
p.p1 {
margin-left: 6em;
}
p.p2 {
margin-left: 40px;
}
p.p3 {
margin-left: 10%;
}
</style>
</head>
<body>
<h2>Margin-left property example</h2>
<p>No specified margin.</p>
<p class="p1"> Left margin is set to 6em.</p>
<p class="p2">Left margin is set to 40px.</p>
<p class="p3">Left margin is set to 10%.</p>
<p>No specified margin</p>
</body>
</html>
Values
Values
| Value | Description | Play it |
|---|---|---|
| auto | Sets the left margin. It is the default value of this property. | Play it » |
| length | Defines a left margin in px, pt, cm, etc. Default value is 0. | Play it » |
| % | Sets the left margin in % of containing element. | Play it » |
| initial | Makes the property use its default value. | Play it » |
| inherit | Inherits the property from its parents element. |