<div class="tear">
  title
  <hr/>
  lorem
</div>

.tear {
  background-color: #eee;
  border: 2px solid #ccc;
  padding: 40px 20px 20px 20px;
  position: relative;
}
.tear:before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  height: 30px;
  background-image: radial-gradient(circle at 15px 15px, white 8px, transparent 8.5px), 
    linear-gradient(to bottom, white 14px, #ccc 14px, #ccc 16px, transparent 16px),
    radial-gradient(circle at 15px 15px, #ccc 10px, transparent 10.5px);
  background-repeat: repeat-x;
  background-size: 30px 30px;
}

hr {
  margin: 20px -20px;
  border: 1px dashed #ccc;
}