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Style outlineWidth Property
Style Object
Definition and Usage
The outlineWidth property sets or returns the width of the outline around an element.
Syntax
Set the outlineWidth property:
Object.style.outlineWidth="thin|medium|thick|length|inherit"
Return the outlineWidth property:
Object.style.outlineWidth
| Value | Description |
|---|---|
| thin | Defines a thin outline |
| medium | Defines a medium outline. This is default |
| thick | Defines a thick outline |
| length | The width of the outline in length units |
| inherit | The width of the outline is inherited from the parent element |
Browser Support
The outlineWidth property is supported in all major browsers.
Note: The outlineWidth property is not supported in IE7 and earlier. IE8 requires a !DOCTYPE. IE9 supports it.
Tips and Notes
An outline is a line around an element. It is displayed around the margin of the element. However, it is different from the border property.
The outline is not a part of the element's dimensions, therefore the element's width and height properties do not contain the width of the outline.
Example
Example
Change the width of the outline:
<html>
<head>
<style type="text/css">
#ex1
{
border:1px solid red;
outline:green dotted thick;
}
</style>
<script>
function displayResult()
{
document.getElementById("ex1").style.outlineWidth="10px";
}
</script>
</head>
<body>
<div id="ex1">This is some text.</div>
<br>
<button type="button" onclick="displayResult()">Change outline width</button>
</body>
</html>
<head>
<style type="text/css">
#ex1
{
border:1px solid red;
outline:green dotted thick;
}
</style>
<script>
function displayResult()
{
document.getElementById("ex1").style.outlineWidth="10px";
}
</script>
</head>
<body>
<div id="ex1">This is some text.</div>
<br>
<button type="button" onclick="displayResult()">Change outline width</button>
</body>
</html>
Try it yourself »
Style Object
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