[kust]

Found this one aswell I think the code block is called pre

div.divCodeSnippetFigure pre span.computerLine,
div.divCodeSnippetFigure pre span.codeNoHighlightLine,
div.codeNoHighlight pre span.computerLine,
div.codeNoHighlight pre span.codeNoHighlightLine {
  display:block;
}
.codeSnippet[data-startNumber] pre,
.codeNoHighlight[data-startNumber] pre {
  counter-reset: line;
  border-left: 1px solid #ddd;
  background: transparent!important;
  margin-left:4em;
  overflow: visible !important;
  position: relative;
}