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Correct!

Set the background-color to red, when you mouse over elements with the class "master".

<style> .master:hover { background-color: red; } </style> <body> <h1 class="master">This is a header.</h1> <p class="master">This is a paragraph.</p> <p>This is a paragraph.</p> </body>

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Correct!

<style>
 {
  background-color: red;
}
</style>

<body>

<h1 class="master">This is a header.</h1>
<p class="master">This is a paragraph.</p>
<p>This is a paragraph.</p>

</body>

  
  
  




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