If we don’t want to overwrite then we have to add a space before the class name.

It overwrites existing classes of the selected elements. The className property used to add a class in JavaScript.We can use className and classList property in JavaScript. To do that, first we create a class and assign it to HTML elements on which we want to apply CSS property. In this article, we will see how to dynamically create a CSS class and apply to the element dynamically using JavaScript. How to Dynamically Add/Remove Table Rows using jQuery ?.How to fetch data from JSON file and display in HTML table using jQuery ?.Set the opacity only to background color not on the text in CSS.What is the difference between CSS and SCSS ?.Make a div horizontally scrollable using CSS.How to apply style to parent if it has child with CSS?.How to get values from html input array using JavaScript ?.How to auto-resize an image to fit a div container using CSS?.How to align content of a div to the bottom using CSS ?.How to place text on image using HTML and CSS?.How to make a vertical line using HTML ?.Create a Responsive Navbar using ReactJS.How to convert JSON string to array of JSON objects using JavaScript ?.How to vertically center text with CSS ?.How to make flexbox children 100% height of their parent using CSS?.How to set fixed width for in a table ?.How to set div width to fit content using CSS ?.Making a div vertically scrollable using CSS.How to select all child elements recursively using CSS?.How to Upload Image into Database and Display it using PHP ?.How to position a div at the bottom of its container using CSS?.How to update Node.js and NPM to next version ?.How to create footer to stay at the bottom of a Web page?.CSS to put icon inside an input element in a form.How to insert spaces/tabs in text using HTML/CSS?.Top 10 Projects For Beginners To Practice HTML and CSS Skills.ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.

Javascript css html classes