CSS, on the other hand, is a stylesheet language used to control the presentation of web pages. It is used to define the layout, colors, fonts, and other visual aspects of a website. CSS has evolved significantly over the years, with modern CSS frameworks such as Bootstrap and Materialize making it easier than ever for developers to create visually appealing and responsive websites.
Accessing CSS Classes
document.querySelector() function. This function takes a CSS selector as its argument and returns the first element that matches the selector.
For example, if you have an HTML element with a class of “my-class”, you can select it using the following code:
const element = document.querySelector('.my-class');
This will return the first element on the page that has a class of “my-class”.
Adding and Removing CSS Classes
Once you have selected the element that you want to manipulate, you can add or remove CSS classes using the
For example, to add a class called “new-class” to an element, you can use the following code:
This will add the “new-class” class to the selected element. Similarly, to remove a class called “old-class” from an element, you can use the following code:
This will remove the “old-class” class from the selected element.