How to set the width of a div element dynamically using jQuery

  2345 views   1 year ago jQuery

Use the JavaScript width() method

You can set the width of a <div> box dynamically using the jQuery width() method.

The width() method simply returns the element's width as unit-less pixel value. However calling the width(value) method sets the width of the element, where the value can be either a string (e.g. 100%, 50px, 25em, auto etc.) or a number. If only a number is provided for the value, jQuery assumes it as a pixel unit. Let's check out an example to understand how it works:

<!DOCTYPE html>
<html lang="en">
<meta charset="utf-8">
<title>jQuery Set a DIV width</title>
        float: left;
        background: #f2f2f2;
        border: 1px solid #ccc;
<script src=""></script>
        var newWidth = $(".input-width").val();
        <input type="text" class="input-width">
        <button type="button" class="set-width-btn">Set Width</button>
        <p>Enter the value in input box either as number (e.g. 100, 200) or combination of number and unit (e.g. 100%, 200px, 50em, auto) and click the "Set Width" button.</p>
    <div class="box">This is simple DIV box</div>


Author : Harsukh Makwana
Harsukh Makwana

Hi, My name is Harsukh Makwana. i have been work with many programming language like php, python, javascript, node, react, anguler, etc.. since last 5 year. if you have any issue or want me hire then contact me on [email protected]