<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Simple dropdown menu</title>
</head>
<body>
  <div class="dropdown">
    <button class="dropbtn">Dropdown</button>
    <div class="dropdown-content">
      <a href="#">Link 1</a>
      <a href="#">Link 2</a>
      <a href="#">Link 3</a>
    </div>
  </div>
</body>
</html>
*
{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body
{
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.dropbtn {
  background-color: #f85710;
  color: white;
  padding: 10px 22px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}

.dropdown
{
  position: relative;
  display: inline-block;
}

.dropdown-content
{
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}

.dropdown-content a
{
  color: #f85710;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}

.dropdown-content a:hover
{
  background-color: #f1f1f1;
}

.dropdown:hover .dropdown-content
{
  display: block;
}

.dropdown:hover .dropbtn
{
  background-color: #f7AB79;
}

External CSS

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External JavaScript

This Pen doesn't use any external JavaScript resources.