tenwy/index.css

## index.css
h1, h2 {
  color: #333;
}

h1::before {
  content: "<3 ";
  color: #f00;
}

## index.html
<html>
  <head>
    <title>Skygear Static Page</title>
    <link rel="stylesheet" type="text/css" href="index.css">
  </head>
  <body>
   <h1>Hello World!</h1>
   <h2></h2>
  </body>
  <script src="index.js"></script>
</html>

## index.js
var d = new Date();

var datestring = d.getDate()  + "-" + (d.getMonth()+1) + "-" + d.getFullYear() + " " +
d.getHours() + ":" + d.getMinutes();

var dateHeading = document.querySelector('h2');
dateHeading.textContent = datestring;
	h1, h2 {
	color: #333;
	}

	h1::before {
	content: "<3 ";
	color: #f00;
	}
	<html>
	<head>
	<title>Skygear Static Page</title>
	<link rel="stylesheet" type="text/css" href="index.css">
	</head>
	<body>
	<h1>Hello World!</h1>
	<h2></h2>
	</body>
	<script src="index.js"></script>
	</html>
	var d = new Date();

	var datestring = d.getDate() + "-" + (d.getMonth()+1) + "-" + d.getFullYear() + " " +
	d.getHours() + ":" + d.getMinutes();

	var dateHeading = document.querySelector('h2');
	dateHeading.textContent = datestring;