HTML DOM Style fontSize Property

# Style fontSize Property

Style Object

## Example

Set the font size for a <p> element to "xx-large":

document.getElementById("myP").style.fontSize="xx-large";
Try it yourself »

## Definition and Usage

The fontSize property sets or returns the font size of the text.

## Browser Support

The fontSize property is supported in all major browsers.

## Syntax

Return the fontSize property:

object.style.fontSize

Set the fontSize property:

object.style.fontSize="value|initial|inherit"

## Property Values

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
initial | Sets this property to its default value. Read about initial
inherit | Inherits this property from its parent element. Read about inherit

## Technical Details

Default Value: | medium
Return Value: | A String, representing the font size of the text in the element
CSS Version | CSS1

## More Examples

## Example

A demonstration of possible values:

var listValue = selectTag.options[selectTag.selectedIndex].text;
document.getElementById("myP").style.fontSize=listValue;
Try it yourself »

## Example

Return the font size of a <p> element:

alert(document.getElementById("myP").style.fontSize);
Try it yourself »

## Related Pages

CSS tutorial: CSS Font

CSS reference: font-size property

HTML DOM reference: font property

Style Object

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