javascript set css attribute code example

Example 1: add style javascript

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

Example 2: how to change style of an element using javascript

<html>
<body>

<p id="p2">Hello World!</p>

<script>
document.getElementById("p2").style.color = "blue";
</script>

<p>The paragraph above was changed by a script.</p>

</body>
</html>

Example 3: access css property using javascript

const element = document.querySelector('.element')
const style = getComputedStyle(element)

Example 4: how to give css style in javascript

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

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Css Example