on-expanded   > .json-ell { color: transparent }

#experiment-progress-counter:empty { display: none }
#experiment-progress-counter {
  width: 25em;
  display: block;
  list-style-type: none;
  -webkit-padding-start: 0;
}
div #experiment-progress-counter:empty {
  border-width: 0px solid black;
  padding: 0 0 0 0;
}
div #experiment-progress-counter {
  border:1px solid black;
  padding: 0 0 2px 2px;
}
#experiment-progress-counter li {
  display: block;
  border: 1px solid black;
  padding: 2px;
  margin-top