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Style fontSize Property
Style Object
Definition and Usage
The fontSize property sets or returns the font size of the text.
Syntax
Set the fontSize property:
Object.style.fontSize="value|inherit"
Return the fontSize property:
Object.style.fontSize
| Value | Description |
|---|---|
| xx-small x-small small medium large x-large xx-large |
Sets the size of the font to different fixed sizes, from xx-small to xx-large |
| smaller | Decreases the font-size by one relative unit |
| larger | Increases the font-size by one relative unit |
| length | Defines the font-size in length units |
| % | Sets the font-size to a % of the parent element's font size |
| inherit | The value of the fontSize property is inherited from parent element |
Browser Support
The fontSize property is supported in all major browsers.
Note: The value "inherit" is not supported in IE7 and earlier. IE8 requires a !DOCTYPE. IE9 supports "inherit".
Example
Example
Change the font size of the text:
<html>
<head>
<script>
function displayResult()
{
document.getElementById("p1").style.fontSize="xx-large";
}
</script>
</head>
<body>
<p id="p1">This is some text.</p>
<br>
<button type="button" onclick="displayResult()">Change font size</button>
</body>
</html>
<head>
<script>
function displayResult()
{
document.getElementById("p1").style.fontSize="xx-large";
}
</script>
</head>
<body>
<p id="p1">This is some text.</p>
<br>
<button type="button" onclick="displayResult()">Change font size</button>
</body>
</html>
Try it yourself »
Style Object
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