VERTICAL MENU WITH SCROLL
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>HTML</title>
<style>
   .menu {
	  width: 200px;
      height: 150px;
      overflow-y: auto; /*Vertical scroll*/	  
	}
     /* Styling the links */
	 
	.menu a {
	  background-color: #dddddd;
      display: block;	  
	  color: blue; 
	  padding: 12px; 
	  text-decoration: none; 
	  font-size : 20px;
	}

	.menu a:hover {
	  color: #565656; 
	}

	.menu a.active {
	  background-color: #04AA6D; 
	  color: white;
	}
</style>
</head>
<body>
    <h2> The vertical menu </h2>
    <div class="menu">
	  <a href="link" class="active">Home</a>
	  <a href="link">Menu</a>
	  <a href="link">study</a>
	  <a href="link">contact</a>
	</div>
	

</body>
</html>