.foc_loop_end, .foc_loop_start {
  color: transparent;
}

.foc_loop_end, .foc_loop_start, [data-echo], [data-echohtml] {
  position: relative;
}

.foc_loop_start:after, .foc_loop_end:after, [data-echo]:after, [data-echohtml]:after {
  content: "template.data";
  position: absolute;
  font-size: 10px;
  color: red;
  font-weight: bold;
  right: 0;
  border: 1px solid;
  bottom: 0;
  padding: 3px;
  opacity: 0.5;
}

.foc_loop_start:after {
  content: '< ----- foc.loop-start ----- >';
}