<!-- nothing -->
$bgcolor: seashell;
$color: transparentize(crimson, .5);
$transparent: rgba(0, 0, 0, 0);

HTML {
  height: 100%;
  }
BODY {
  background: linear-gradient(
      $transparent 60%, 
      $color 60%
      ),
    linear-gradient(90deg,
      $transparent 60%, 
      $color 60%
      );
  background-size: 2em 2em;
  background-color: $bgcolor;
  background-position: center 1em;
  font: 20px/2 'Trebuchet MS', Verdana, sans-serif;
  }
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