white-space-collapse CSS property

/* Keyword values */
white-space-collapse: collapse;
white-space-collapse: preserve;
white-space-collapse: preserve-breaks;
white-space-collapse: preserve-spaces;
white-space-collapse: break-spaces;

/* Global values */
white-space-collapse: inherit;
white-space-collapse: initial;
white-space-collapse: revert;
white-space-collapse: revert-layer;
white-space-collapse: unset;

<h2 class="collapse">Default behavior;
  all   whitespace   is   collapsed
  in    the          heading       .</h2>

<h2 class="preserve">In this case
  all   whitespace   is   preserved
  in    the          heading       .</h2>

<h2 class="preserve-breaks">In this case only
  the   line breaks  are  preserved
  in    the          heading       .</h2>

<h2 class="preserve-spaces">In this case only
  the   spaces       are  preserved
  in    the          heading       .</h2>

.collapse {
  white-space-collapse: collapse;
}

.preserve {
  white-space-collapse: preserve;
}

.preserve-breaks {
  white-space-collapse: preserve-breaks;
}

.preserve-spaces {
  white-space-collapse: preserve-spaces;
}

h2 {
  font-size: 1.6rem;
  font-family: monospace;
  border-bottom: 1px dotted #cccccc;
}