JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html>
<head>
	<title>Latihan Onmouseout</title>
	<script type="text/javascript">
		function ubah(){
			var p = document.getElementById('text');
			p.style.color = "blue";
			p.style.fontWeight = "700";			
		}
	</script>
</head>
<body>
	<p id="text">Selamat Datang di Halaman Webku</p>
	<button type="button" onmouseout="ubah();">Arahkan Mouse Ke Sini, Lalu Tinggalkan Untuk Mengubah</button>
</body>
</html>