[data-st-if] {
  position: relative;
  border: 1px dashed #df0000; padding: 4px;
}
[data-st-comment]::before {
  content: attr(data-st-comment);
  //opacity: 0.5;
  font-size: 12px;
  line-height: 20px;
  position: absolute;
  left: 0;
  top: 0;
  margin-top: -21px;
  margin-left: -1px;
  background-color: #EECCCC;
  color: #000000;
  border-top: 1px dashed #df0000;
  border-left: 1px dashed #df0000;
  border-right: 1px dashed#df0000;
  padding: 0 5px;
}