With the style sheet included, any changes to the style sheet become visible on the webpage.

Type yellow to give it a try.

<html>
<head>
<style>
h1{
color: yellow;
}
p {
color: blue;
}
</style>
</head>
<body>
<h1>Water Puns</h1>

<p>
  When does it start to rain money?
  When there's change in the weather.
</p>

</body>
</html>
]]>

Make sure to type yellow.