codemirror-collab-ext-master/src/css/codemirror-collab-ext.css

.codemirror-remote-cursor {
  position: absolute;
  pointer-events: none;
  z-index: 4000;
  width: 2px;
}

.codemirror-remote-cursor:before {
  content: "";
  width: 6px;
  height: 5px;
  display: block;
  margin-left: -2px;
  margin-top: 0;
  z-index: 4000;
  background: inherit;
}

.codemirror-remote-cursor-tooltip {
  position: absolute;
  white-space: nowrap;
  color: #FFFFFF;
  text-shadow: 0 0 1px #000000;
  opacity: 1.0;
  font-size: 12px;
  padding: 2px;
  font-family: sans-serif;
  z-index: 4000;

  transition: opacity 0.5s ease-out;
  -webkit-transition: opacity 0.5s ease-out;
  -moz-transition: opacity 0.5s ease-out;
  -ms-transition: opacity 0.5s ease-out;
  -o-transition: opacity 0.5s ease-out;
}