<a class="button" href="http://pantswebsite.com">
  Learn More <span class="offscreen"> about pants</span>
</a>
.offscreen {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

External CSS

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External JavaScript

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