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fontWeight style property

Browser support:

Specifies or returns the font weight of the text.

The currentStyle.fontWeight JavaScript property returns only integer values (100 - 900) in Internet Explorer.

Syntax:

object.fontWeight;

You can find the related objects in the Supported by objects section below.

This property is read/write.

CSS page for this property: font-weight

Possible values:

The type of this property is string.

One of the following values:

normal

Font is normal.

bold

Font is bold.

bolder

Font is bolder.

lighter

Font is lighter.

100

Not bolder than 200 weight.

200

Not bolder than 300 weight.

300

Not bolder than 400 weight.

400

Font is normal.

500

Not lighter than 400 weight and not bolder than 600 weight.

600

Not bolder than 700 weight.

700

Font is bold.

800

Not lighter than 700 weight.

900

Not lighter than 800 weight.

inherit

Takes the value of this property from the computed style of the parent element.

Default: normal.

Example HTML code 1:

This example illustrates the use of the font-weight property:

<head>
    <style>
        .normal {
            font-weight: normal;
        }
        .bold {
            font-weight: bold;
        }
    </style>
</head>
<body>
    <span class="normal">font-weight: normal</span>
    <span class="bold">font-weight: bold</span>
</body>

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Example HTML code 2:

This example illustrates the use of the fontWeight property in JavaScript:

<head>
    <script type="text/javascript">
        function ChangeFont (selectTag) {            
            // Returns the index of the selected option
            var whichSelected = selectTag.selectedIndex;

            // Returns the selected options values
            var selectState = selectTag.options[whichSelected].text;

            var fontTest = document.getElementById ("fontTest");
            fontTest.style.fontWeight = selectState;
        }
    </script>
</head>
<body>
    <span id="fontTest">
        Sample multiline text <br />change it!
    </span>

    <br />
    <select onchange="ChangeFont (this);" size="7">
        <option />bold
        <option />bolder
        <option />lighter
        <option />normal
        <option />300
        <option selected="selected" />600
        <option />900
    </select>
</body>