<div class="uno">Sans</div>
<div class="dos">White</div>
<div class="tres">50%</div>
div {
  padding: 1rem;
  margin: 1rem;
  background-color: aqua;
}

.uno {
  font-family: nth((Helvetica, Arial, sans-serif), 3);
}

.dos {
   color: nth((white, red), 1);
}

.tres {
   width: nth((100%, 30%, 50%), 3);
}

External CSS

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External JavaScript

This Pen doesn't use any external JavaScript resources.