The element.class selector selects the specified elements with the specified class attribute value. To select only one type of elements with a specific class, write the element name, then a period (.) character, followed by the class attribute value (look at Example 1 below).

Nov 10, 2015 · The CSS class selector is very usefull to group HTML elements that don't have their own tag (e.g. class: "contact info card" if your page shows many cards). This is a good solution as long as the class selector is also relevant to someone with a text-only browser (to replace missing content tags).

Yes you can - first capture the event using onmouseover, then set the class name using Element.className. If you like to add or remove classes - use the more convenient Element.classList method.

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:

Oct 13, 2020 · In this tutorial, you will create a CSS class selector, which will allow you to apply CSS rules only to HTML elements that are assigned the class. CSS class selectors are useful when you want to apply different style rules for different instances of the same HTML element.

Dec 5, 2018 · To select elements with a specific class, write a period (.) character, followed by the name of the class. You can also specify that only specific HTML elements should be affected by a class. To do this, start with the element name, then write the period (.) character, followed by the name of the class.

Apr 10, 2025 · A class in CSS is a group of CSS property like font-style, height, width, color, etc. which is when used as an attribute in an HTML tag, the CSS styling is applied to that tag. Syntax: .class_name {

Apr 23, 2025 · Assign CSS class to the elements by adding the class attribute. Create a CSS stylesheet in the same folder and link them. Select the class using a period symbol followed by its name and the style properties. Apply additional classes to …

In this guide, we’ll go over how to define CSS classes, how to apply them to HTML elements, and best practices for organizing and naming classes effectively. 1. What is a CSS Class?

Feb 11, 2020 · CSS classes enable you to apply unique style properties to groups of HTML elements to achieve your desired web page appearance. In this post, we'll cover the fundamental terms you need to know, like CSS class, class selector, and CSS specificity. We'll also walk through how to create a class in CSS and use it to style your web pages.