<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>blue</title>
<link rel="stylesheet" href="css/styles.css">
</head>
<body id="blue-body">
<button class="index" onclick="changePage('index')">index</button>
<button class="red" onclick="changePage('red')">RED</button>
<button class="green" onclick="changePage('green')">GREEN</button>
<button class="blue" onclick="changePage('blue')">BLUE</button>
<script src="js/scripts.js"></script>
</body>
</html>