The HTML class attribute is used to specify a class for an HTML element. Multiple HTML elements can share the same class. The class attribute is often used to point to a class name in a style sheet. It can also be used by a JavaScript to access and manipulate elements with the specific class name.

Learn how to add a class name to an element with JavaScript. Click the button to add a class to me! Add a class name to the div element with id="myDIV" (in this example we use a button to add the class). This is a DIV element. Style the specified class name: Get the <div> element with id="myDIV" and add the "mystyle" class to it:

Nov 28, 2016 · JavaScript provides 2 different ways by which you can add classes to HTML elements: Using element.classList.add() Method; Using className property; Using both methods you can add single or multiple classes at once. 1. Using element.classList.add() Method

The class attribute specifies one or more classnames for an element. The class attribute is mostly used to point to a class in a style sheet. However, it can also be used by a JavaScript (via the HTML DOM) to make changes to HTML elements with a specified class.

Jul 12, 2009 · Use the .classList.add() method: This method is better than overwriting the className property, because it doesn't remove other classes and doesn't add the class if the element already has it. You can also toggle or remove classes using element.classList (see the MDN documentation). Correct.

Dec 20, 2012 · Or, depending on the required browser support, you can use the classList.add() method: https://developer.mozilla.org/en-US/docs/Web/API/Element/classList http://caniuse.com/#feat=classlist. UPDATE: A more elegant solution for referencing the HTML element might be this: FYI, classlist.add/.remove doesn't work on document.documentElement.

Oct 17, 2024 · The HTML class attribute is used to assign one or more CSS classes to an HTML element. By using classes, you can group elements together and apply consistent styles across them, streamlining both design and functionality.

Jun 18, 2022 · Any HTML element can have as many different classes as needed to style the element using CSS effectively. To assign multiple classes to a single HTML element, you need to specify each class name inside the class attribute separated with a blank space. For example, the following <p> element is assigned one class called heading: </p>

Add the class attribute to various HTML elements. Use valid CSS selectors to target class names. Assign one or more classes to an element for styling and dynamic behavior.

Sep 30, 2023 · In HTML, the class attribute on an anchor element assigns one or more classnames to the element. Classes are used to style elements.