Try it Editor

<!DOCTYPE html>
<html>
<head>
<style>
h1 {
  letter-spacing: 5px;
}
 
h2 {
  letter-spacing: -5px;
}
</style>
</head>
<body>
 
<h1>This is heading 1</h1>
<h2>This is heading 2</h2>
 
</body>
</html>