add styles js 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: style through javascript
element.style.backgroundColor = "red"; // set the background color of an element to red