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CSSStyleDeclaration JS Conversion


Style fontWeight Property

❮ Style Object

Example

Set the font weight for an element to "900":

document.getElementById("demo").style.fontWeight = "900";
Try it Yourself »

Definition and Usage

The fontWeight property sets or returns how thick or thin characters in a text should be displayed.


Browser Support

Property
fontWeight Yes Yes Yes Yes Yes

Syntax

Return the fontWeight property:

object.style.fontWeight

Set the fontWeight property:

object.style.fontWeight = "normal|lighter|bold|bolder|value|initial|inherit"

Property Values

Value Description
normal Font is normal. This is default
lighter Font is lighter
bold Font is bold
bolder Font is bolder
100
200
300
400
500
600
700
800
900
Defines from light to bold characters. 400 is the same as normal, and 700 is the same as bold
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: normal
Return Value: A String, representing the boldness of the font
CSS Version CSS1

More Examples

Example

A demonstration of possible values:

var listValue = selectTag.options[selectTag.selectedIndex].text;
document.getElementById("demo").style.fontWeight = listValue;
Try it Yourself »

Example

Return the font weight of an element:

alert(document.getElementById("demo").style.fontWeight);
Try it Yourself »

Related Pages

CSS tutorial: CSS Font

CSS reference: font-weight property

HTML DOM reference: font property


❮ Style Object