<div class="container">
  <div id="setter">
    <span>some variable content</span>
  </div>

  <div class="wrap">
    <span>
      lorem ipsum lorem ipsum lorem ipsum lorem ipsum
    </span>
  </div>
</div>

.container {
  max-width: 200px;
}

.wrap {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}