Select only the element with the ID "highlight".

<html>
<head>
   <style>
#newspaper {
font-style: italic;
}
#highlight {
color: green;
}
</style>
</head>
<body>
  <h1 id="newspaper">Springfield Shopper</h1>
  <h1 id="highlight">President Simpson Declares World Peace
  </h1>
</body>
</html>]]>

Make sure to assemble #highlight.