<header>
  <h2 class="title">Navigator: appName Property</h2>
  <p class="description">This property returns the name of the browser.</p>
</header>
<main>
  <div class="result">
    <p>Your browser's name is: <span id="browserName"></span></p>
  </div>
</main>

body {
  font-size: 16px;
  line-height: 1.5;
  font-family: Arial, sans-serif;
}

header {
  background-color: #f1f1f1;
  margin-bottom: 25px;
  padding: 15px;
  box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
}

header h2.title {
  padding-bottom: 15px;
  border-bottom: 1px solid #999;
}

header p.description {
  font-style: italic;
  color: #222;
}

.result {
  background-color: #f8f8f8;
  padding: 15px;
  box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
}