HTML | DOM Style width Property

The Style width property in HTML DOM is used to set or return the width of an element which can be block-level elements or elements with fixed position.

Syntax:

It is used to return the width property:

object.style.width

It is used to set the width property:

object.style.width = "auto|length|%|initial|inherit"

Property Value Description

auto-This value automatically sets the default width value by the browser.
length-This value sets the width value in the specified length units.
%-Percentage value sets the width value in the specified percentage of the parent element’s width.
initial-This value sets the width property to its browser’s default value.
inherit-This value sets the width property to the value from its parent element.

Return Value: A String, representing the width of an element.

Example 1:

HTML

<!DOCTYPE html>
<html>
<head>
    <style>
        #GfG {
            width: 100px;
            height: 100px;
            background-color: green;
            color: white;
        }
    </style>
</head>
<body>
    <p>HTML|DOM Style Width Property:</p>
    <button onclick="myFunction()">Click here!</button>
    <div id="GfG">
        <h1>GfG</h1>
    </div>
    <script>
        function myFunction() {
            document.getElementById("GfG")
            .style.width = "500px";
        }
    </script>
</body>
</html>

Output:

Before click on the button:

After click on the button:

Example 2:

html

<!DOCTYPE html>
<html>
<body>
    <h1>GeeksforGeeks</h1>
    <h2>HTML|DOM Style Width Property:</h2>
    <button type="button" id="myBtn" 
            onclick="myFunction()">Click Here!</button>
    <script>
        function myFunction() {
            document.getElementById("myBtn")
            .style.width = "500px";
        }
    </script>
</body>
</html>

Output:

Before click on the button:

After click on the button:

Supported Browsers: The browser supported by DOM style width property are listed below:

Google Chrome 1
Edge 12
Internet Explorer 4
Firefox 1
Safari 1
Opera 3.5

HTML | DOM Style width Property

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