Zadatak sa 4 diva

<!DOCTYPE html>
<html>
<head>
	<title>Coloring Divs</title>
	<script>
		function changeColor(color) {
			document.getElementById("fourth-div").style.backgroundColor = color;
		}
	</script>
	<style>
		.container {
			display: flex;
			flex-wrap: wrap;
		}

		.color-option {
			width: 100px;
			height: 100px;
			margin: 10px;
			border: 1px solid black;
			cursor: pointer;
		}

		#fourth-div {
			width: 300px;
			height: 300px;
			margin-top: 20px;
			border: 1px solid black;
			background-color: white;
		}
	</style>
</head>
<body>
	<div class="container">
		<div class="color-option" style="background-color: red" onclick="changeColor('red')"></div>
		<div class="color-option" style="background-color: green" onclick="changeColor('green')"></div>
		<div class="color-option" style="background-color: blue" onclick="changeColor('blue')"></div>
		<div id="fourth-div"></div>
	</div>
</body>
</html>