index.html

<!DOCTYPE HTML>
<html>
      <head>
                <title>Shooter</title>
                <meta charset = "utf-8">
                    <meta http-equiv = "content-type" content = "text/html; charset=utf-8">
                <style>
                        body{
                            background-image: url("./assets/spacBackground.jpg");
                            background-attachment : fixed;
		                    background-size : cover;
                        }
                </style>

             <script src = "//cdn.jsdelivr.net/phaser/2.2.2/phaser.min.js"></script> 
      </head>

      <body>
                <a href = "./level1.html">
                    <img src = "./assets/level1.png" style = "width: 15% ; margin-left: 32%; margin-right: auto; margin-top: 35%;">
                </a>
                <a href = "./level2.html">
                    <img src = "./assets/level2.png" style = "width: 15% ; margin-left: 7%; margin-right: auto; margin-top: 35%;">
                </a>
      </body>
</html>