<h1>Lorem ipsum dolor sit amet. <span>Lorem ipsum dolor sit amet, consectetur adipisicing elit. A, facere.</span></h1>
body {
  max-width: 550px;
  width: 100%;
  margin: 0 auto;
}
h1 {
  font-size: 48px;
}

h1 span {
  display: inline-block;
  font-size: 12px;
  max-width: 200px;
  margin-left: auto;
}

External CSS

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External JavaScript

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