javascript change style of div code example

Example 1: javascript set div height

document.getElementById("myBtn").style.height = "50px";

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: style through javascript

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

Example 4: change style js

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