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<html>
<head>
  <link rel="stylesheet" type="text/css" href="style.css">
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<body>
<h1>The Monty Hall game</h1>

<div id="doors">
  <div id="door1" class="closedDoor">Door 1</div>
  
  <div id="door2" class="closedDoor">Door 2</div>
  
  <div id="door3" class="openedDoor">Door 3</div>
</div>  


<div id="message1">Messages will be written here.</div>


<div id="switch">
  Change your answer?
  <input type="button" id="switchChoice" value="Switch">
  <input type="button" id="keepChoice" 