If there are multiple elements of the same kind on a webpage, selectors like h1, h2, or p change all of these elements.

<html>
<head>
<style>
h1{
font: "Arial";
color: green;}
h2{
font: "Arial";
color: blue;}
p{
font: "Arial";
font-weight: normal;}
</style>
</head>
<body>
  <h1>Not On Time Magazine</h1>
  <p>
   Always first with the last
  </p>
  <h2>Car Trends</h2>
  <p>
   Coal powered cars. The future?
  </p>
  <h2>Fashion Latest</h2>
  <p>
   Flared jeans
  </p>
</body>
</html>]]>