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How to change background color using w3.js ?


 608

W3.JS


0

<!DOCTYPE html>
<html>
<title>W3.JS</title>
<script src="https://www.w3schools.com/lib/w3.js"></script>
<body>

<button onclick="w3.addStyle('#mydiv','background-color','red')">click</button>

<div id="mydiv">

<h1>Hello world!</h1>

</div>

</body>
</html>

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