Add a border to the
h3
rule.
<html>
<head>
<style>
h3 {
border:solid 10px red;
}
</style>
</head>
<body>
<h2>Rainforest Online Shop</h2>
<h3>Item out of stock until December!</h3>
</body>
</html>]]>
Make sure to pick
border
.