body {
  background-color: black;
  color: #55ff55;
  font-family: monospace;
}
.output {
  color: white;
}
.active:after {
  content: '_';
} 

body {
  background-color: black;
  color: #55ff55;
  font-family: monospace;
}
.output {
  color: white;
}
.active:after {
  content: '_';
} 

body {
	line-height: 1;
}
Update line height because of addition of span.
Update line height because of addition of span.
