How to change a html class with Javascript?
1933
How can I change an element's class with JavaScript?
143791
Can I set a default css class for an html element
15479
Variable classname in javascript
83951
Change document class per page
154660
Changing element places in jQuery
47535
Toggling only a single class as active in a list with vanilla JS or CSS
146804
How to add a class to the image tag
106572
Selecting a css class with xpath
78976
jQuery change method on input type="file"
7906
Changing image on hover with CSS/HTML
127628
How Can I Add a "Selected" Class Based on URL with jQuery?
19467
"document.getElementByClass is not a function"
37725
How do I add a DOM element with jQuery?
21690
How to change a HTML tag using JavaScript
110886
How to use Class in Java?
146114
select text inside an html element and change style
154489
Add class to target based on radio input value (toggle, like function)