how to add style javascript code example

Example 1: add style javascript

// Bad:
element.setAttribute("style", "background-color: red;");
// Good:
element.style.backgroundColor = "red";

Example 2: how to give css style in javascript

document.getElementById("myH1").style.color = "red";

Example 3: javascript style an element

// Getting the element first
var myElement = document.querySelector("#myElement");

// examples for updating styles
myElement.style.color = "blue";
myElement.style.backgroundColor = "red";

Example 4: style through javascript

element.style.backgroundColor = "red";   // set the background color of an element to red

Example 5: change style js

// select element from DOM
const el = document.querySelector('.para')
// change css style
el.style.color = 'purple'