<div class='container'>
  <h1 class='title'>Welcome to the CSS Tutorial</h1>
  <p class='description'>This paragraph demonstrates the use of margin-block-end property.</p>
  <p class='description'>Another paragraph to show the effect of margin.</p>
</div>

.container {
  background-color: #f0f0f0;
  padding: 20px;
  border: 1px solid #ccc;
}

.title {
  color: #333;
  margin-block-end: 30px;
}

description {
  color: #555;
  margin: 10px 0;
}

// No JavaScript required for this demo

Welcome to the CSS Tutorial

This paragraph demonstrates the use of margin-block-end property.

Another paragraph to show the effect of margin.